21894915

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{29789}}^1$

素因数の和:29811

約数の個数: 24

約数和(自身を含む): 40752720

約数和(自身を除く): 18857805

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 29789, 89367, 148945, 208523, 446835, 625569, 1042615, 1459661, 3127845, 4378983, 7298305, 21894915]

約数ペア:

[(1, 21894915), (3, 7298305), (5, 4378983), (7, 3127845), (15, 1459661), (21, 1042615), (35, 625569), (49, 446835), (105, 208523), (147, 148945), (245, 89367), (735, 29789)]