20554995

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^2\times {\mathrm{173}}^1$

素因数の和:359

約数の個数: 24

約数和(自身を含む): 33453936

約数和(自身を除く): 12898941

約数列:

[1, 3, 5, 15, 89, 173, 267, 445, 519, 865, 1335, 2595, 7921, 15397, 23763, 39605, 46191, 76985, 118815, 230955, 1370333, 4110999, 6851665, 20554995]

約数ペア:

[(1, 20554995), (3, 6851665), (5, 4110999), (15, 1370333), (89, 230955), (173, 118815), (267, 76985), (445, 46191), (519, 39605), (865, 23763), (1335, 15397), (2595, 7921)]