21190440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:187

約数の個数: 128

約数和(自身を含む): 67132800

約数和(自身を除く): 45942360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 59, 60, 73, 82, 118, 120, 123, 146, 164, 177, 205, 219, 236, 246, 292, 295, 328, 354, 365, 410, 438, 472, 492, 584, 590, 615, 708, 730, 820, 876, 885, 984, 1095, 1180, 1230, 1416, 1460, 1640, 1752, 1770, 2190, 2360, 2419, 2460, 2920, 2993, 3540, 4307, 4380, 4838, 4920, 5986, 7080, 7257, 8614, 8760, 8979, 9676, 11972, 12095, 12921, 14514, 14965, 17228, 17958, 19352, 21535, 23944, 24190, 25842, 29028, 29930, 34456, 35916, 36285, 43070, 44895, 48380, 51684, 58056, 59860, 64605, 71832, 72570, 86140, 89790, 96760, 103368, 119720, 129210, 145140, 172280, 176587, 179580, 258420, 290280, 353174, 359160, 516840, 529761, 706348, 882935, 1059522, 1412696, 1765870, 2119044, 2648805, 3531740, 4238088, 5297610, 7063480, 10595220, 21190440]

約数ペア:

[(1, 21190440), (2, 10595220), (3, 7063480), (4, 5297610), (5, 4238088), (6, 3531740), (8, 2648805), (10, 2119044), (12, 1765870), (15, 1412696), (20, 1059522), (24, 882935), (30, 706348), (40, 529761), (41, 516840), (59, 359160), (60, 353174), (73, 290280), (82, 258420), (118, 179580), (120, 176587), (123, 172280), (146, 145140), (164, 129210), (177, 119720), (205, 103368), (219, 96760), (236, 89790), (246, 86140), (292, 72570), (295, 71832), (328, 64605), (354, 59860), (365, 58056), (410, 51684), (438, 48380), (472, 44895), (492, 43070), (584, 36285), (590, 35916), (615, 34456), (708, 29930), (730, 29028), (820, 25842), (876, 24190), (885, 23944), (984, 21535), (1095, 19352), (1180, 17958), (1230, 17228), (1416, 14965), (1460, 14514), (1640, 12921), (1752, 12095), (1770, 11972), (2190, 9676), (2360, 8979), (2419, 8760), (2460, 8614), (2920, 7257), (2993, 7080), (3540, 5986), (4307, 4920), (4380, 4838)]