21899911

素因数分解:

${\mathrm{11}}^2\times {\mathrm{241}}^1\times {\mathrm{751}}^1$

素因数の和:1014

約数の個数: 12

約数和(自身を含む): 24203872

約数和(自身を除く): 2303961

約数列:

[1, 11, 121, 241, 751, 2651, 8261, 29161, 90871, 180991, 1990901, 21899911]

約数ペア:

[(1, 21899911), (11, 1990901), (121, 180991), (241, 90871), (751, 29161), (2651, 8261)]