21204982

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{251}}^1\times {\mathrm{797}}^1$

素因数の和:1103

約数の個数: 16

約数和(自身を含む): 32577552

約数和(自身を除く): 11372570

約数列:

[1, 2, 53, 106, 251, 502, 797, 1594, 13303, 26606, 42241, 84482, 200047, 400094, 10602491, 21204982]

約数ペア:

[(1, 21204982), (2, 10602491), (53, 400094), (106, 200047), (251, 84482), (502, 42241), (797, 26606), (1594, 13303)]