19722988

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1867}}^1$

素因数の和:2029

約数の個数: 24

約数和(自身を含む): 36612800

約数和(自身を除く): 16889812

約数列:

[1, 2, 4, 19, 38, 76, 139, 278, 556, 1867, 2641, 3734, 5282, 7468, 10564, 35473, 70946, 141892, 259513, 519026, 1038052, 4930747, 9861494, 19722988]

約数ペア:

[(1, 19722988), (2, 9861494), (4, 4930747), (19, 1038052), (38, 519026), (76, 259513), (139, 141892), (278, 70946), (556, 35473), (1867, 10564), (2641, 7468), (3734, 5282)]