647598238

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{20771}}^1$

素因数の和:20928

約数の個数: 32

約数和(自身を含む): 1184502528

約数和(自身を除く): 536904290

約数列:

[1, 2, 7, 14, 17, 34, 119, 131, 238, 262, 917, 1834, 2227, 4454, 15589, 20771, 31178, 41542, 145397, 290794, 353107, 706214, 2471749, 2721001, 4943498, 5442002, 19047007, 38094014, 46257017, 92514034, 323799119, 647598238]

約数ペア:

[(1, 647598238), (2, 323799119), (7, 92514034), (14, 46257017), (17, 38094014), (34, 19047007), (119, 5442002), (131, 4943498), (238, 2721001), (262, 2471749), (917, 706214), (1834, 353107), (2227, 290794), (4454, 145397), (15589, 41542), (20771, 31178)]