87221911

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{401}}^1$

素因数の和:631

約数の個数: 24

約数和(自身を含む): 106687584

約数和(自身を除く): 19465673

約数列:

[1, 7, 23, 49, 161, 193, 401, 1127, 1351, 2807, 4439, 9223, 9457, 19649, 31073, 64561, 77393, 217511, 451927, 541751, 1780039, 3792257, 12460273, 87221911]

約数ペア:

[(1, 87221911), (7, 12460273), (23, 3792257), (49, 1780039), (161, 541751), (193, 451927), (401, 217511), (1127, 77393), (1351, 64561), (2807, 31073), (4439, 19649), (9223, 9457)]