21406686

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{1801}}^1$

素因数の和:2096

約数の個数: 32

約数和(自身を含む): 49129728

約数和(自身を除く): 27723042

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 283, 566, 849, 1698, 1801, 1981, 3602, 3962, 5403, 5943, 10806, 11886, 12607, 25214, 37821, 75642, 509683, 1019366, 1529049, 3058098, 3567781, 7135562, 10703343, 21406686]

約数ペア:

[(1, 21406686), (2, 10703343), (3, 7135562), (6, 3567781), (7, 3058098), (14, 1529049), (21, 1019366), (42, 509683), (283, 75642), (566, 37821), (849, 25214), (1698, 12607), (1801, 11886), (1981, 10806), (3602, 5943), (3962, 5403)]