21039810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{619}}^1$

素因数の和:743

約数の個数: 64

約数和(自身を含む): 55710720

約数和(自身を除く): 34670910

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 103, 110, 165, 206, 309, 330, 515, 618, 619, 1030, 1133, 1238, 1545, 1857, 2266, 3090, 3095, 3399, 3714, 5665, 6190, 6798, 6809, 9285, 11330, 13618, 16995, 18570, 20427, 33990, 34045, 40854, 63757, 68090, 102135, 127514, 191271, 204270, 318785, 382542, 637570, 701327, 956355, 1402654, 1912710, 2103981, 3506635, 4207962, 7013270, 10519905, 21039810]

約数ペア:

[(1, 21039810), (2, 10519905), (3, 7013270), (5, 4207962), (6, 3506635), (10, 2103981), (11, 1912710), (15, 1402654), (22, 956355), (30, 701327), (33, 637570), (55, 382542), (66, 318785), (103, 204270), (110, 191271), (165, 127514), (206, 102135), (309, 68090), (330, 63757), (515, 40854), (618, 34045), (619, 33990), (1030, 20427), (1133, 18570), (1238, 16995), (1545, 13618), (1857, 11330), (2266, 9285), (3090, 6809), (3095, 6798), (3399, 6190), (3714, 5665)]