21010860

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:145

約数の個数: 192

約数和(自身を含む): 73100160

約数和(自身を除く): 52089300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 41, 45, 52, 54, 60, 65, 73, 78, 82, 90, 108, 117, 123, 130, 135, 146, 156, 164, 180, 195, 205, 219, 234, 246, 260, 270, 292, 351, 365, 369, 390, 410, 438, 468, 492, 533, 540, 585, 615, 657, 702, 730, 738, 780, 820, 876, 949, 1066, 1095, 1107, 1170, 1230, 1314, 1404, 1460, 1476, 1599, 1755, 1845, 1898, 1971, 2132, 2190, 2214, 2340, 2460, 2628, 2665, 2847, 2993, 3198, 3285, 3510, 3690, 3796, 3942, 4380, 4428, 4745, 4797, 5330, 5535, 5694, 5986, 6396, 6570, 7020, 7380, 7884, 7995, 8541, 8979, 9490, 9594, 9855, 10660, 11070, 11388, 11972, 13140, 14235, 14391, 14965, 15990, 17082, 17958, 18980, 19188, 19710, 22140, 23985, 25623, 26937, 28470, 28782, 29930, 31980, 34164, 35916, 38909, 39420, 42705, 44895, 47970, 51246, 53874, 56940, 57564, 59860, 71955, 77818, 80811, 85410, 89790, 95940, 102492, 107748, 116727, 128115, 134685, 143910, 155636, 161622, 170820, 179580, 194545, 233454, 256230, 269370, 287820, 323244, 350181, 389090, 404055, 466908, 512460, 538740, 583635, 700362, 778180, 808110, 1050543, 1167270, 1400724, 1616220, 1750905, 2101086, 2334540, 3501810, 4202172, 5252715, 7003620, 10505430, 21010860]

約数ペア:

[(1, 21010860), (2, 10505430), (3, 7003620), (4, 5252715), (5, 4202172), (6, 3501810), (9, 2334540), (10, 2101086), (12, 1750905), (13, 1616220), (15, 1400724), (18, 1167270), (20, 1050543), (26, 808110), (27, 778180), (30, 700362), (36, 583635), (39, 538740), (41, 512460), (45, 466908), (52, 404055), (54, 389090), (60, 350181), (65, 323244), (73, 287820), (78, 269370), (82, 256230), (90, 233454), (108, 194545), (117, 179580), (123, 170820), (130, 161622), (135, 155636), (146, 143910), (156, 134685), (164, 128115), (180, 116727), (195, 107748), (205, 102492), (219, 95940), (234, 89790), (246, 85410), (260, 80811), (270, 77818), (292, 71955), (351, 59860), (365, 57564), (369, 56940), (390, 53874), (410, 51246), (438, 47970), (468, 44895), (492, 42705), (533, 39420), (540, 38909), (585, 35916), (615, 34164), (657, 31980), (702, 29930), (730, 28782), (738, 28470), (780, 26937), (820, 25623), (876, 23985), (949, 22140), (1066, 19710), (1095, 19188), (1107, 18980), (1170, 17958), (1230, 17082), (1314, 15990), (1404, 14965), (1460, 14391), (1476, 14235), (1599, 13140), (1755, 11972), (1845, 11388), (1898, 11070), (1971, 10660), (2132, 9855), (2190, 9594), (2214, 9490), (2340, 8979), (2460, 8541), (2628, 7995), (2665, 7884), (2847, 7380), (2993, 7020), (3198, 6570), (3285, 6396), (3510, 5986), (3690, 5694), (3796, 5535), (3942, 5330), (4380, 4797), (4428, 4745)]