20189439

素因数分解:

$3^3\times {\mathrm{313}}^1\times {\mathrm{2389}}^1$

素因数の和:2711

約数の個数: 16

約数和(自身を含む): 30018400

約数和(自身を除く): 9828961

約数列:

[1, 3, 9, 27, 313, 939, 2389, 2817, 7167, 8451, 21501, 64503, 747757, 2243271, 6729813, 20189439]

約数ペア:

[(1, 20189439), (3, 6729813), (9, 2243271), (27, 747757), (313, 64503), (939, 21501), (2389, 8451), (2817, 7167)]