20189403

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4013}}^1$

素因数の和:4075

約数の個数: 24

約数和(自身を含む): 32144112

約数和(自身を除く): 11954709

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 387, 559, 1677, 4013, 5031, 12039, 36117, 52169, 156507, 172559, 469521, 517677, 1553031, 2243267, 6729801, 20189403]

約数ペア:

[(1, 20189403), (3, 6729801), (9, 2243267), (13, 1553031), (39, 517677), (43, 469521), (117, 172559), (129, 156507), (387, 52169), (559, 36117), (1677, 12039), (4013, 5031)]