21208168

素因数分解:

$2^3\times {\mathrm{1013}}^1\times {\mathrm{2617}}^1$

素因数の和:3636

約数の個数: 16

約数和(自身を含む): 39819780

約数和(自身を除く): 18611612

約数列:

[1, 2, 4, 8, 1013, 2026, 2617, 4052, 5234, 8104, 10468, 20936, 2651021, 5302042, 10604084, 21208168]

約数ペア:

[(1, 21208168), (2, 10604084), (4, 5302042), (8, 2651021), (1013, 20936), (2026, 10468), (2617, 8104), (4052, 5234)]