21293472529

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{401}}^1\times {\mathrm{1567}}^1$

素因数の和:2125

約数の個数: 32

約数和(自身を含む): 25173098496

約数和(自身を除く): 3879625967

約数列:

[1, 7, 47, 103, 329, 401, 721, 1567, 2807, 4841, 10969, 18847, 33887, 41303, 73649, 131929, 161401, 289121, 515543, 628367, 1129807, 1941241, 4398569, 7585847, 13588687, 29533249, 53100929, 64721801, 206732743, 453052607, 3041924647, 21293472529]

約数ペア:

[(1, 21293472529), (7, 3041924647), (47, 453052607), (103, 206732743), (329, 64721801), (401, 53100929), (721, 29533249), (1567, 13588687), (2807, 7585847), (4841, 4398569), (10969, 1941241), (18847, 1129807), (33887, 628367), (41303, 515543), (73649, 289121), (131929, 161401)]