19802788

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{3889}}^1$

素因数の和:3979

約数の個数: 24

約数和(自身を含む): 37032800

約数和(自身を除く): 17230012

約数列:

[1, 2, 4, 19, 38, 67, 76, 134, 268, 1273, 2546, 3889, 5092, 7778, 15556, 73891, 147782, 260563, 295564, 521126, 1042252, 4950697, 9901394, 19802788]

約数ペア:

[(1, 19802788), (2, 9901394), (4, 4950697), (19, 1042252), (38, 521126), (67, 295564), (76, 260563), (134, 147782), (268, 73891), (1273, 15556), (2546, 7778), (3889, 5092)]