128980251

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{27091}}^1$

素因数の和:27143

約数の個数: 18

約数和(自身を含む): 194764388

約数和(自身を除く): 65784137

約数列:

[1, 3, 9, 23, 69, 207, 529, 1587, 4761, 27091, 81273, 243819, 623093, 1869279, 5607837, 14331139, 42993417, 128980251]

約数ペア:

[(1, 128980251), (3, 42993417), (9, 14331139), (23, 5607837), (69, 1869279), (207, 623093), (529, 243819), (1587, 81273), (4761, 27091)]