21781242

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{172867}}^1$

素因数の和:172882

約数の個数: 24

約数和(自身を含む): 53934816

約数和(自身を除く): 32153574

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 172867, 345734, 518601, 1037202, 1210069, 1555803, 2420138, 3111606, 3630207, 7260414, 10890621, 21781242]

約数ペア:

[(1, 21781242), (2, 10890621), (3, 7260414), (6, 3630207), (7, 3111606), (9, 2420138), (14, 1555803), (18, 1210069), (21, 1037202), (42, 518601), (63, 345734), (126, 172867)]