21197210

素因数分解:

$2^1\times 5^1\times {\mathrm{419}}^1\times {\mathrm{5059}}^1$

素因数の和:5485

約数の個数: 16

約数和(自身を含む): 38253600

約数和(自身を除く): 17056390

約数列:

[1, 2, 5, 10, 419, 838, 2095, 4190, 5059, 10118, 25295, 50590, 2119721, 4239442, 10598605, 21197210]

約数ペア:

[(1, 21197210), (2, 10598605), (5, 4239442), (10, 2119721), (419, 50590), (838, 25295), (2095, 10118), (4190, 5059)]