21352688

素因数分解:

$2^4\times 7^1\times {\mathrm{190649}}^1$

素因数の和:190664

約数の個数: 20

約数和(自身を含む): 47281200

約数和(自身を除く): 25928512

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 190649, 381298, 762596, 1334543, 1525192, 2669086, 3050384, 5338172, 10676344, 21352688]

約数ペア:

[(1, 21352688), (2, 10676344), (4, 5338172), (7, 3050384), (8, 2669086), (14, 1525192), (16, 1334543), (28, 762596), (56, 381298), (112, 190649)]