21214564

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{39877}}^1$

素因数の和:39907

約数の個数: 24

約数和(自身を含む): 44663360

約数和(自身を除く): 23448796

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 39877, 79754, 159508, 279139, 558278, 757663, 1116556, 1515326, 3030652, 5303641, 10607282, 21214564]

約数ペア:

[(1, 21214564), (2, 10607282), (4, 5303641), (7, 3030652), (14, 1515326), (19, 1116556), (28, 757663), (38, 558278), (76, 279139), (133, 159508), (266, 79754), (532, 39877)]