19879916

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{17317}}^1$

素因数の和:17369

約数の個数: 24

約数和(自身を含む): 40731936

約数和(自身を除く): 20852020

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 17317, 34634, 69268, 121219, 242438, 484876, 709997, 1419994, 2839988, 4969979, 9939958, 19879916]

約数ペア:

[(1, 19879916), (2, 9939958), (4, 4969979), (7, 2839988), (14, 1419994), (28, 709997), (41, 484876), (82, 242438), (164, 121219), (287, 69268), (574, 34634), (1148, 17317)]