21117998

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{14327}}^1$

素因数の和:14407

約数の個数: 16

約数和(自身を含む): 35074944

約数和(自身を除く): 13956946

約数列:

[1, 2, 11, 22, 67, 134, 737, 1474, 14327, 28654, 157597, 315194, 959909, 1919818, 10558999, 21117998]

約数ペア:

[(1, 21117998), (2, 10558999), (11, 1919818), (22, 959909), (67, 315194), (134, 157597), (737, 28654), (1474, 14327)]