20696505

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{419}}^1$

素因数の和:553

約数の個数: 32

約数和(自身を含む): 34473600

約数和(自身を除く): 13777095

約数列:

[1, 3, 5, 15, 37, 89, 111, 185, 267, 419, 445, 555, 1257, 1335, 2095, 3293, 6285, 9879, 15503, 16465, 37291, 46509, 49395, 77515, 111873, 186455, 232545, 559365, 1379767, 4139301, 6898835, 20696505]

約数ペア:

[(1, 20696505), (3, 6898835), (5, 4139301), (15, 1379767), (37, 559365), (89, 232545), (111, 186455), (185, 111873), (267, 77515), (419, 49395), (445, 46509), (555, 37291), (1257, 16465), (1335, 15503), (2095, 9879), (3293, 6285)]