19564985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{2801}}^1$

素因数の和:2944

約数の個数: 16

約数和(自身を含む): 25823232

約数和(自身を除く): 6258247

約数列:

[1, 5, 11, 55, 127, 635, 1397, 2801, 6985, 14005, 30811, 154055, 355727, 1778635, 3912997, 19564985]

約数ペア:

[(1, 19564985), (5, 3912997), (11, 1778635), (55, 355727), (127, 154055), (635, 30811), (1397, 14005), (2801, 6985)]