21851703

素因数分解:

$3^2\times {\mathrm{29}}^2\times {\mathrm{2887}}^1$

素因数の和:2951

約数の個数: 18

約数和(自身を含む): 32700824

約数和(自身を除く): 10849121

約数列:

[1, 3, 9, 29, 87, 261, 841, 2523, 2887, 7569, 8661, 25983, 83723, 251169, 753507, 2427967, 7283901, 21851703]

約数ペア:

[(1, 21851703), (3, 7283901), (9, 2427967), (29, 753507), (87, 251169), (261, 83723), (841, 25983), (2523, 8661), (2887, 7569)]