21706203

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1\times {\mathrm{647}}^1$

素因数の和:914

約数の個数: 16

約数和(自身を含む): 29673216

約数和(自身を除く): 7967013

約数列:

[1, 3, 53, 159, 211, 633, 647, 1941, 11183, 33549, 34291, 102873, 136517, 409551, 7235401, 21706203]

約数ペア:

[(1, 21706203), (3, 7235401), (53, 409551), (159, 136517), (211, 102873), (633, 34291), (647, 33549), (1941, 11183)]