64729623

素因数分解:

$3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 100684800

約数和(自身を除く): 35955177

約数列:

[1, 3, 7, 21, 137, 149, 151, 411, 447, 453, 959, 1043, 1057, 2877, 3129, 3171, 20413, 20687, 22499, 61239, 62061, 67497, 142891, 144809, 157493, 428673, 434427, 472479, 3082363, 9247089, 21576541, 64729623]

約数ペア:

[(1, 64729623), (3, 21576541), (7, 9247089), (21, 3082363), (137, 472479), (149, 434427), (151, 428673), (411, 157493), (447, 144809), (453, 142891), (959, 67497), (1043, 62061), (1057, 61239), (2877, 22499), (3129, 20687), (3171, 20413)]