20825119

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{1259}}^1$

素因数の和:1422

約数の個数: 16

約数和(自身を含む): 25401600

約数和(自身を除く): 4576481

約数列:

[1, 7, 17, 119, 139, 973, 1259, 2363, 8813, 16541, 21403, 149821, 175001, 1225007, 2975017, 20825119]

約数ペア:

[(1, 20825119), (7, 2975017), (17, 1225007), (119, 175001), (139, 149821), (973, 21403), (1259, 16541), (2363, 8813)]