19205221

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{1063}}^1$

素因数の和:1188

約数の個数: 16

約数和(自身を含む): 22982400

約数和(自身を除く): 3777179

約数列:

[1, 7, 29, 89, 203, 623, 1063, 2581, 7441, 18067, 30827, 94607, 215789, 662249, 2743603, 19205221]

約数ペア:

[(1, 19205221), (7, 2743603), (29, 662249), (89, 215789), (203, 94607), (623, 30827), (1063, 18067), (2581, 7441)]