21768495

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{4231}}^1$

素因数の和:4260

約数の個数: 32

約数和(自身を含む): 40627200

約数和(自身を除く): 18858705

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 735, 1029, 1715, 4231, 5145, 12693, 21155, 29617, 63465, 88851, 148085, 207319, 444255, 621957, 1036595, 1451233, 3109785, 4353699, 7256165, 21768495]

約数ペア:

[(1, 21768495), (3, 7256165), (5, 4353699), (7, 3109785), (15, 1451233), (21, 1036595), (35, 621957), (49, 444255), (105, 207319), (147, 148085), (245, 88851), (343, 63465), (735, 29617), (1029, 21155), (1715, 12693), (4231, 5145)]