21551913

素因数分解:

$3^5\times {\mathrm{31}}^1\times {\mathrm{2861}}^1$

素因数の和:2907

約数の個数: 24

約数和(自身を含む): 33336576

約数和(自身を除く): 11784663

約数列:

[1, 3, 9, 27, 31, 81, 93, 243, 279, 837, 2511, 2861, 7533, 8583, 25749, 77247, 88691, 231741, 266073, 695223, 798219, 2394657, 7183971, 21551913]

約数ペア:

[(1, 21551913), (3, 7183971), (9, 2394657), (27, 798219), (31, 695223), (81, 266073), (93, 231741), (243, 88691), (279, 77247), (837, 25749), (2511, 8583), (2861, 7533)]