19725212

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{2729}}^1$

素因数の和:2885

約数の個数: 24

約数和(自身を含む): 37455600

約数和(自身を除く): 17730388

約数列:

[1, 2, 4, 13, 26, 52, 139, 278, 556, 1807, 2729, 3614, 5458, 7228, 10916, 35477, 70954, 141908, 379331, 758662, 1517324, 4931303, 9862606, 19725212]

約数ペア:

[(1, 19725212), (2, 9862606), (4, 4931303), (13, 1517324), (26, 758662), (52, 379331), (139, 141908), (278, 70954), (556, 35477), (1807, 10916), (2729, 7228), (3614, 5458)]