19637991

素因数分解:

$3^3\times {\mathrm{137}}^1\times {\mathrm{5309}}^1$

素因数の和:5455

約数の個数: 16

約数和(自身を含む): 29311200

約数和(自身を除く): 9673209

約数列:

[1, 3, 9, 27, 137, 411, 1233, 3699, 5309, 15927, 47781, 143343, 727333, 2181999, 6545997, 19637991]

約数ペア:

[(1, 19637991), (3, 6545997), (9, 2181999), (27, 727333), (137, 143343), (411, 47781), (1233, 15927), (3699, 5309)]