19877962

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{11411}}^1$

素因数の和:11493

約数の個数: 16

約数和(自身を含む): 32592672

約数和(自身を除く): 12714710

約数列:

[1, 2, 13, 26, 67, 134, 871, 1742, 11411, 22822, 148343, 296686, 764537, 1529074, 9938981, 19877962]

約数ペア:

[(1, 19877962), (2, 9938981), (13, 1529074), (26, 764537), (67, 296686), (134, 148343), (871, 22822), (1742, 11411)]