21002910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{499}}^1$

素因数の和:593

約数の個数: 64

約数和(自身を含む): 53568000

約数和(自身を除く): 32565090

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 61, 69, 115, 122, 138, 183, 230, 305, 345, 366, 499, 610, 690, 915, 998, 1403, 1497, 1830, 2495, 2806, 2994, 4209, 4990, 7015, 7485, 8418, 11477, 14030, 14970, 21045, 22954, 30439, 34431, 42090, 57385, 60878, 68862, 91317, 114770, 152195, 172155, 182634, 304390, 344310, 456585, 700097, 913170, 1400194, 2100291, 3500485, 4200582, 7000970, 10501455, 21002910]

約数ペア:

[(1, 21002910), (2, 10501455), (3, 7000970), (5, 4200582), (6, 3500485), (10, 2100291), (15, 1400194), (23, 913170), (30, 700097), (46, 456585), (61, 344310), (69, 304390), (115, 182634), (122, 172155), (138, 152195), (183, 114770), (230, 91317), (305, 68862), (345, 60878), (366, 57385), (499, 42090), (610, 34431), (690, 30439), (915, 22954), (998, 21045), (1403, 14970), (1497, 14030), (1830, 11477), (2495, 8418), (2806, 7485), (2994, 7015), (4209, 4990)]