21922537

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{383}}^1$

素因数の和:457

約数の個数: 32

約数和(自身を含む): 29417472

約数和(自身を除く): 7494935

約数列:

[1, 7, 13, 17, 37, 91, 119, 221, 259, 383, 481, 629, 1547, 2681, 3367, 4403, 4979, 6511, 8177, 14171, 34853, 45577, 57239, 84643, 99197, 184223, 240907, 592501, 1289561, 1686349, 3131791, 21922537]

約数ペア:

[(1, 21922537), (7, 3131791), (13, 1686349), (17, 1289561), (37, 592501), (91, 240907), (119, 184223), (221, 99197), (259, 84643), (383, 57239), (481, 45577), (629, 34853), (1547, 14171), (2681, 8177), (3367, 6511), (4403, 4979)]