20500665

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{241}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 33872256

約数和(自身を除く): 13371591

約数列:

[1, 3, 5, 15, 53, 107, 159, 241, 265, 321, 535, 723, 795, 1205, 1605, 3615, 5671, 12773, 17013, 25787, 28355, 38319, 63865, 77361, 85065, 128935, 191595, 386805, 1366711, 4100133, 6833555, 20500665]

約数ペア:

[(1, 20500665), (3, 6833555), (5, 4100133), (15, 1366711), (53, 386805), (107, 191595), (159, 128935), (241, 85065), (265, 77361), (321, 63865), (535, 38319), (723, 28355), (795, 25787), (1205, 17013), (1605, 12773), (3615, 5671)]