21109419

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{2609}}^1$

素因数の和:2675

約数の個数: 24

約数和(自身を含む): 32572800

約数和(自身を除く): 11463381

約数列:

[1, 3, 9, 29, 31, 87, 93, 261, 279, 899, 2609, 2697, 7827, 8091, 23481, 75661, 80879, 226983, 242637, 680949, 727911, 2345491, 7036473, 21109419]

約数ペア:

[(1, 21109419), (3, 7036473), (9, 2345491), (29, 727911), (31, 680949), (87, 242637), (93, 226983), (261, 80879), (279, 75661), (899, 23481), (2609, 8091), (2697, 7827)]