388720871

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{269}}^1\times {\mathrm{383}}^1$

素因数の和:684

約数の個数: 32

約数和(自身を含む): 497664000

約数和(自身を除く): 108943129

約数列:

[1, 7, 11, 49, 77, 269, 343, 383, 539, 1883, 2681, 2959, 3773, 4213, 13181, 18767, 20713, 29491, 92267, 103027, 131369, 144991, 206437, 721189, 1014937, 1133297, 1445059, 5048323, 7933079, 35338261, 55531553, 388720871]

約数ペア:

[(1, 388720871), (7, 55531553), (11, 35338261), (49, 7933079), (77, 5048323), (269, 1445059), (343, 1133297), (383, 1014937), (539, 721189), (1883, 206437), (2681, 144991), (2959, 131369), (3773, 103027), (4213, 92267), (13181, 29491), (18767, 20713)]