21673305

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4339}}^1$

素因数の和:4390

約数の個数: 32

約数和(自身を含む): 39580800

約数和(自身を除く): 17907495

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 111, 135, 185, 333, 555, 999, 1665, 4339, 4995, 13017, 21695, 39051, 65085, 117153, 160543, 195255, 481629, 585765, 802715, 1444887, 2408145, 4334661, 7224435, 21673305]

約数ペア:

[(1, 21673305), (3, 7224435), (5, 4334661), (9, 2408145), (15, 1444887), (27, 802715), (37, 585765), (45, 481629), (111, 195255), (135, 160543), (185, 117153), (333, 65085), (555, 39051), (999, 21695), (1665, 13017), (4339, 4995)]