65978787

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{193}}^1\times {\mathrm{223}}^1$

素因数の和:499

約数の個数: 32

約数和(自身を含む): 102903808

約数和(自身を除く): 36925021

約数列:

[1, 3, 7, 21, 73, 193, 219, 223, 511, 579, 669, 1351, 1533, 1561, 4053, 4683, 14089, 16279, 42267, 43039, 48837, 98623, 113953, 129117, 295869, 301273, 341859, 903819, 3141847, 9425541, 21992929, 65978787]

約数ペア:

[(1, 65978787), (3, 21992929), (7, 9425541), (21, 3141847), (73, 903819), (193, 341859), (219, 301273), (223, 295869), (511, 129117), (579, 113953), (669, 98623), (1351, 48837), (1533, 43039), (1561, 42267), (4053, 16279), (4683, 14089)]