18887973

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{3697}}^1$

素因数の和:3844

約数の個数: 16

約数和(自身を含む): 27335616

約数和(自身を除く): 8447643

約数列:

[1, 3, 13, 39, 131, 393, 1703, 3697, 5109, 11091, 48061, 144183, 484307, 1452921, 6295991, 18887973]

約数ペア:

[(1, 18887973), (3, 6295991), (13, 1452921), (39, 484307), (131, 144183), (393, 48061), (1703, 11091), (3697, 5109)]