18916793

素因数分解:

$7^3\times {\mathrm{131}}^1\times {\mathrm{421}}^1$

素因数の和:573

約数の個数: 16

約数和(自身を含む): 22281600

約数和(自身を除く): 3364807

約数列:

[1, 7, 49, 131, 343, 421, 917, 2947, 6419, 20629, 44933, 55151, 144403, 386057, 2702399, 18916793]

約数ペア:

[(1, 18916793), (7, 2702399), (49, 386057), (131, 144403), (343, 55151), (421, 44933), (917, 20629), (2947, 6419)]