21950355

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{599}}^1$

素因数の和:963

約数の個数: 32

約数和(自身を含む): 40320000

約数和(自身を除く): 18369645

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 349, 599, 1047, 1745, 1797, 2443, 2995, 4193, 5235, 7329, 8985, 12215, 12579, 20965, 36645, 62895, 209051, 627153, 1045255, 1463357, 3135765, 4390071, 7316785, 21950355]

約数ペア:

[(1, 21950355), (3, 7316785), (5, 4390071), (7, 3135765), (15, 1463357), (21, 1045255), (35, 627153), (105, 209051), (349, 62895), (599, 36645), (1047, 20965), (1745, 12579), (1797, 12215), (2443, 8985), (2995, 7329), (4193, 5235)]