217331317

素因数分解:

$7^5\times {\mathrm{67}}^1\times {\mathrm{193}}^1$

素因数の和:295

約数の個数: 24

約数和(自身を含む): 258668736

約数和(自身を除く): 41337419

約数列:

[1, 7, 49, 67, 193, 343, 469, 1351, 2401, 3283, 9457, 12931, 16807, 22981, 66199, 90517, 160867, 463393, 633619, 1126069, 3243751, 4435333, 31047331, 217331317]

約数ペア:

[(1, 217331317), (7, 31047331), (49, 4435333), (67, 3243751), (193, 1126069), (343, 633619), (469, 463393), (1351, 160867), (2401, 90517), (3283, 66199), (9457, 22981), (12931, 16807)]