21007902

素因数分解:

$2^1\times 3^1\times {\mathrm{661}}^1\times {\mathrm{5297}}^1$

素因数の和:5963

約数の個数: 16

約数和(自身を含む): 42087312

約数和(自身を除く): 21079410

約数列:

[1, 2, 3, 6, 661, 1322, 1983, 3966, 5297, 10594, 15891, 31782, 3501317, 7002634, 10503951, 21007902]

約数ペア:

[(1, 21007902), (2, 10503951), (3, 7002634), (6, 3501317), (661, 31782), (1322, 15891), (1983, 10594), (3966, 5297)]