128016413

素因数分解:

$7^1\times {\mathrm{23}}^2\times {\mathrm{181}}^1\times {\mathrm{191}}^1$

素因数の和:425

約数の個数: 24

約数和(自身を含む): 154592256

約数和(自身を除く): 26575843

約数列:

[1, 7, 23, 161, 181, 191, 529, 1267, 1337, 3703, 4163, 4393, 29141, 30751, 34571, 95749, 101039, 241997, 670243, 707273, 795133, 5565931, 18288059, 128016413]

約数ペア:

[(1, 128016413), (7, 18288059), (23, 5565931), (161, 795133), (181, 707273), (191, 670243), (529, 241997), (1267, 101039), (1337, 95749), (3703, 34571), (4163, 30751), (4393, 29141)]