21031406

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{6089}}^1$

素因数の和:6259

約数の個数: 16

約数和(自身を含む): 34639920

約数和(自身を除く): 13608514

約数列:

[1, 2, 11, 22, 157, 314, 1727, 3454, 6089, 12178, 66979, 133958, 955973, 1911946, 10515703, 21031406]

約数ペア:

[(1, 21031406), (2, 10515703), (11, 1911946), (22, 955973), (157, 133958), (314, 66979), (1727, 12178), (3454, 6089)]