15661972109

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{487}}^1\times {\mathrm{2063}}^1$

素因数の和:2705

約数の個数: 32

約数和(自身を含む): 19145465856

約数和(自身を除く): 3483493747

約数列:

[1, 7, 17, 119, 131, 487, 917, 2063, 2227, 3409, 8279, 14441, 15589, 35071, 57953, 63797, 245497, 270253, 446579, 1004681, 1084549, 1891771, 4594301, 7032767, 7591843, 17079577, 32160107, 119557039, 131613211, 921292477, 2237424587, 15661972109]

約数ペア:

[(1, 15661972109), (7, 2237424587), (17, 921292477), (119, 131613211), (131, 119557039), (487, 32160107), (917, 17079577), (2063, 7591843), (2227, 7032767), (3409, 4594301), (8279, 1891771), (14441, 1084549), (15589, 1004681), (35071, 446579), (57953, 270253), (63797, 245497)]