21203070

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3257}}^1$

素因数の和:3305

約数の個数: 64

約数和(自身を含む): 60051456

約数和(自身を除く): 38848386

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 62, 70, 93, 105, 155, 186, 210, 217, 310, 434, 465, 651, 930, 1085, 1302, 2170, 3255, 3257, 6510, 6514, 9771, 16285, 19542, 22799, 32570, 45598, 48855, 68397, 97710, 100967, 113995, 136794, 201934, 227990, 302901, 341985, 504835, 605802, 683970, 706769, 1009670, 1413538, 1514505, 2120307, 3029010, 3533845, 4240614, 7067690, 10601535, 21203070]

約数ペア:

[(1, 21203070), (2, 10601535), (3, 7067690), (5, 4240614), (6, 3533845), (7, 3029010), (10, 2120307), (14, 1514505), (15, 1413538), (21, 1009670), (30, 706769), (31, 683970), (35, 605802), (42, 504835), (62, 341985), (70, 302901), (93, 227990), (105, 201934), (155, 136794), (186, 113995), (210, 100967), (217, 97710), (310, 68397), (434, 48855), (465, 45598), (651, 32570), (930, 22799), (1085, 19542), (1302, 16285), (2170, 9771), (3255, 6514), (3257, 6510)]