399602021

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{151}}^1\times {\mathrm{2237}}^1$

素因数の和:2421

約数の個数: 24

約数和(自身を含む): 498017664

約数和(自身を除く): 98415643

約数列:

[1, 7, 13, 91, 151, 169, 1057, 1183, 1963, 2237, 13741, 15659, 25519, 29081, 178633, 203567, 337787, 378053, 2364509, 2646371, 4391231, 30738617, 57086003, 399602021]

約数ペア:

[(1, 399602021), (7, 57086003), (13, 30738617), (91, 4391231), (151, 2646371), (169, 2364509), (1057, 378053), (1183, 337787), (1963, 203567), (2237, 178633), (13741, 29081), (15659, 25519)]