21010470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3169}}^1$

素因数の和:3209

約数の個数: 64

約数和(自身を含む): 57516480

約数和(自身を除く): 36506010

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 26, 30, 34, 39, 51, 65, 78, 85, 102, 130, 170, 195, 221, 255, 390, 442, 510, 663, 1105, 1326, 2210, 3169, 3315, 6338, 6630, 9507, 15845, 19014, 31690, 41197, 47535, 53873, 82394, 95070, 107746, 123591, 161619, 205985, 247182, 269365, 323238, 411970, 538730, 617955, 700349, 808095, 1235910, 1400698, 1616190, 2101047, 3501745, 4202094, 7003490, 10505235, 21010470]

約数ペア:

[(1, 21010470), (2, 10505235), (3, 7003490), (5, 4202094), (6, 3501745), (10, 2101047), (13, 1616190), (15, 1400698), (17, 1235910), (26, 808095), (30, 700349), (34, 617955), (39, 538730), (51, 411970), (65, 323238), (78, 269365), (85, 247182), (102, 205985), (130, 161619), (170, 123591), (195, 107746), (221, 95070), (255, 82394), (390, 53873), (442, 47535), (510, 41197), (663, 31690), (1105, 19014), (1326, 15845), (2210, 9507), (3169, 6630), (3315, 6338)]