20147950778

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{27905749}}^1$

素因数の和:27905789

約数の個数: 12

約数和(自身を含む): 31896272250

約数和(自身を除く): 11748321472

約数列:

[1, 2, 19, 38, 361, 722, 27905749, 55811498, 530209231, 1060418462, 10073975389, 20147950778]

約数ペア:

[(1, 20147950778), (2, 10073975389), (19, 1060418462), (38, 530209231), (361, 55811498), (722, 27905749)]