19897898

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{307}}^1\times {\mathrm{1409}}^1$

素因数の和:1741

約数の個数: 16

約数和(自身を含む): 31268160

約数和(自身を除く): 11370262

約数列:

[1, 2, 23, 46, 307, 614, 1409, 2818, 7061, 14122, 32407, 64814, 432563, 865126, 9948949, 19897898]

約数ペア:

[(1, 19897898), (2, 9948949), (23, 865126), (46, 432563), (307, 64814), (614, 32407), (1409, 14122), (2818, 7061)]