19972545

素因数分解:

$3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{9719}}^1$

素因数の和:9864

約数の個数: 16

約数和(自身を含む): 32192640

約数和(自身を除く): 12220095

約数列:

[1, 3, 5, 15, 137, 411, 685, 2055, 9719, 29157, 48595, 145785, 1331503, 3994509, 6657515, 19972545]

約数ペア:

[(1, 19972545), (3, 6657515), (5, 3994509), (15, 1331503), (137, 145785), (411, 48595), (685, 29157), (2055, 9719)]