21633680

素因数分解:

$2^4\times 5^1\times {\mathrm{270421}}^1$

素因数の和:270434

約数の個数: 20

約数和(自身を含む): 50298492

約数和(自身を除く): 28664812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 270421, 540842, 1081684, 1352105, 2163368, 2704210, 4326736, 5408420, 10816840, 21633680]

約数ペア:

[(1, 21633680), (2, 10816840), (4, 5408420), (5, 4326736), (8, 2704210), (10, 2163368), (16, 1352105), (20, 1081684), (40, 540842), (80, 270421)]