20903485209

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{414431}}^1$

素因数の和:414517

約数の個数: 32

約数和(自身を含む): 31510093824

約数和(自身を除く): 10606608615

約数列:

[1, 3, 17, 23, 43, 51, 69, 129, 391, 731, 989, 1173, 2193, 2967, 16813, 50439, 414431, 1243293, 7045327, 9531913, 17820533, 21135981, 28595739, 53461599, 162042521, 302949061, 409872259, 486127563, 908847183, 1229616777, 6967828403, 20903485209]

約数ペア:

[(1, 20903485209), (3, 6967828403), (17, 1229616777), (23, 908847183), (43, 486127563), (51, 409872259), (69, 302949061), (129, 162042521), (391, 53461599), (731, 28595739), (989, 21135981), (1173, 17820533), (2193, 9531913), (2967, 7045327), (16813, 1243293), (50439, 414431)]