21461545

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{547}}^1$

素因数の和:637

約数の個数: 32

約数和(自身を含む): 31564800

約数和(自身を除く): 10103255

約数列:

[1, 5, 7, 19, 35, 59, 95, 133, 295, 413, 547, 665, 1121, 2065, 2735, 3829, 5605, 7847, 10393, 19145, 32273, 39235, 51965, 72751, 161365, 225911, 363755, 613187, 1129555, 3065935, 4292309, 21461545]

約数ペア:

[(1, 21461545), (5, 4292309), (7, 3065935), (19, 1129555), (35, 613187), (59, 363755), (95, 225911), (133, 161365), (295, 72751), (413, 51965), (547, 39235), (665, 32273), (1121, 19145), (2065, 10393), (2735, 7847), (3829, 5605)]