20870252

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{1481}}^1$

素因数の和:1769

約数の個数: 24

約数和(自身を含む): 39504192

約数和(自身を除く): 18633940

約数列:

[1, 2, 4, 13, 26, 52, 271, 542, 1084, 1481, 2962, 3523, 5924, 7046, 14092, 19253, 38506, 77012, 401351, 802702, 1605404, 5217563, 10435126, 20870252]

約数ペア:

[(1, 20870252), (2, 10435126), (4, 5217563), (13, 1605404), (26, 802702), (52, 401351), (271, 77012), (542, 38506), (1084, 19253), (1481, 14092), (2962, 7046), (3523, 5924)]