71355319

素因数分解:

$7^4\times {\mathrm{113}}^1\times {\mathrm{263}}^1$

素因数の和:404

約数の個数: 20

約数和(自身を含む): 84298896

約数和(自身を除く): 12943577

約数列:

[1, 7, 49, 113, 263, 343, 791, 1841, 2401, 5537, 12887, 29719, 38759, 90209, 208033, 271313, 631463, 1456231, 10193617, 71355319]

約数ペア:

[(1, 71355319), (7, 10193617), (49, 1456231), (113, 631463), (263, 271313), (343, 208033), (791, 90209), (1841, 38759), (2401, 29719), (5537, 12887)]