20187880947

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1938719}}^1$

素因数の和:1938827

約数の個数: 24

約数和(自身を含む): 31756233600

約数和(自身を除く): 11568352653

約数列:

[1, 3, 9, 13, 39, 89, 117, 267, 801, 1157, 3471, 10413, 1938719, 5816157, 17448471, 25203347, 75610041, 172545991, 226830123, 517637973, 1552913919, 2243097883, 6729293649, 20187880947]

約数ペア:

[(1, 20187880947), (3, 6729293649), (9, 2243097883), (13, 1552913919), (39, 517637973), (89, 226830123), (117, 172545991), (267, 75610041), (801, 25203347), (1157, 17448471), (3471, 5816157), (10413, 1938719)]