68690209

素因数分解:

$7^5\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:163

約数の個数: 24

約数和(自身を含む): 82667328

約数和(自身を除く): 13977119

約数列:

[1, 7, 49, 61, 67, 343, 427, 469, 2401, 2989, 3283, 4087, 16807, 20923, 22981, 28609, 146461, 160867, 200263, 1025227, 1126069, 1401841, 9812887, 68690209]

約数ペア:

[(1, 68690209), (7, 9812887), (49, 1401841), (61, 1126069), (67, 1025227), (343, 200263), (427, 160867), (469, 146461), (2401, 28609), (2989, 22981), (3283, 20923), (4087, 16807)]