21457179

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{2377}}^1$

素因数の和:2459

約数の個数: 24

約数和(自身を含む): 33387120

約数和(自身を除く): 11929941

約数列:

[1, 3, 9, 17, 51, 59, 153, 177, 531, 1003, 2377, 3009, 7131, 9027, 21393, 40409, 121227, 140243, 363681, 420729, 1262187, 2384131, 7152393, 21457179]

約数ペア:

[(1, 21457179), (3, 7152393), (9, 2384131), (17, 1262187), (51, 420729), (59, 363681), (153, 140243), (177, 121227), (531, 40409), (1003, 21393), (2377, 9027), (3009, 7131)]