20121705

素因数分解:

$3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{3001}}^1$

素因数の和:3161

約数の個数: 24

約数和(自身を含む): 35123400

約数和(自身を除く): 15001695

約数列:

[1, 3, 5, 9, 15, 45, 149, 447, 745, 1341, 2235, 3001, 6705, 9003, 15005, 27009, 45015, 135045, 447149, 1341447, 2235745, 4024341, 6707235, 20121705]

約数ペア:

[(1, 20121705), (3, 6707235), (5, 4024341), (9, 2235745), (15, 1341447), (45, 447149), (149, 135045), (447, 45015), (745, 27009), (1341, 15005), (2235, 9003), (3001, 6705)]