21403340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{23}}^2$

素因数の和:96

約数の個数: 108

約数和(自身を含む): 57043056

約数和(自身を除く): 35639716

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 23, 28, 34, 35, 46, 68, 70, 85, 92, 115, 119, 140, 161, 170, 230, 238, 289, 322, 340, 391, 460, 476, 529, 578, 595, 644, 782, 805, 1058, 1156, 1190, 1445, 1564, 1610, 1955, 2023, 2116, 2380, 2645, 2737, 2890, 3220, 3703, 3910, 4046, 5290, 5474, 5780, 6647, 7406, 7820, 8092, 8993, 10115, 10580, 10948, 13294, 13685, 14812, 17986, 18515, 20230, 26588, 27370, 33235, 35972, 37030, 40460, 44965, 46529, 54740, 62951, 66470, 74060, 89930, 93058, 125902, 132940, 152881, 179860, 186116, 232645, 251804, 305762, 314755, 465290, 611524, 629510, 764405, 930580, 1070167, 1259020, 1528810, 2140334, 3057620, 4280668, 5350835, 10701670, 21403340]

約数ペア:

[(1, 21403340), (2, 10701670), (4, 5350835), (5, 4280668), (7, 3057620), (10, 2140334), (14, 1528810), (17, 1259020), (20, 1070167), (23, 930580), (28, 764405), (34, 629510), (35, 611524), (46, 465290), (68, 314755), (70, 305762), (85, 251804), (92, 232645), (115, 186116), (119, 179860), (140, 152881), (161, 132940), (170, 125902), (230, 93058), (238, 89930), (289, 74060), (322, 66470), (340, 62951), (391, 54740), (460, 46529), (476, 44965), (529, 40460), (578, 37030), (595, 35972), (644, 33235), (782, 27370), (805, 26588), (1058, 20230), (1156, 18515), (1190, 17986), (1445, 14812), (1564, 13685), (1610, 13294), (1955, 10948), (2023, 10580), (2116, 10115), (2380, 8993), (2645, 8092), (2737, 7820), (2890, 7406), (3220, 6647), (3703, 5780), (3910, 5474), (4046, 5290)]