21008424

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{20357}}^1$

素因数の和:20409

約数の個数: 32

約数和(自身を含む): 53745120

約数和(自身を除く): 32736696

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 516, 1032, 20357, 40714, 61071, 81428, 122142, 162856, 244284, 488568, 875351, 1750702, 2626053, 3501404, 5252106, 7002808, 10504212, 21008424]

約数ペア:

[(1, 21008424), (2, 10504212), (3, 7002808), (4, 5252106), (6, 3501404), (8, 2626053), (12, 1750702), (24, 875351), (43, 488568), (86, 244284), (129, 162856), (172, 122142), (258, 81428), (344, 61071), (516, 40714), (1032, 20357)]