21797445

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:162

約数の個数: 48

約数和(自身を含む): 37904832

約数和(自身を除く): 16107387

約数列:

[1, 3, 5, 15, 23, 41, 67, 69, 115, 123, 201, 205, 335, 345, 529, 615, 943, 1005, 1541, 1587, 2645, 2747, 2829, 4623, 4715, 7705, 7935, 8241, 13735, 14145, 21689, 23115, 35443, 41205, 63181, 65067, 106329, 108445, 177215, 189543, 315905, 325335, 531645, 947715, 1453163, 4359489, 7265815, 21797445]

約数ペア:

[(1, 21797445), (3, 7265815), (5, 4359489), (15, 1453163), (23, 947715), (41, 531645), (67, 325335), (69, 315905), (115, 189543), (123, 177215), (201, 108445), (205, 106329), (335, 65067), (345, 63181), (529, 41205), (615, 35443), (943, 23115), (1005, 21689), (1541, 14145), (1587, 13735), (2645, 8241), (2747, 7935), (2829, 7705), (4623, 4715)]