21889605

素因数分解:

$3^1\times 5^1\times {\mathrm{797}}^1\times {\mathrm{1831}}^1$

素因数の和:2636

約数の個数: 16

約数和(自身を含む): 35086464

約数和(自身を除く): 13196859

約数列:

[1, 3, 5, 15, 797, 1831, 2391, 3985, 5493, 9155, 11955, 27465, 1459307, 4377921, 7296535, 21889605]

約数ペア:

[(1, 21889605), (3, 7296535), (5, 4377921), (15, 1459307), (797, 27465), (1831, 11955), (2391, 9155), (3985, 5493)]