20189649

素因数分解:

$3^1\times {\mathrm{31}}^2\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:261

約数の個数: 24

約数和(自身を含む): 28598400

約数和(自身を除く): 8408751

約数列:

[1, 3, 31, 47, 93, 141, 149, 447, 961, 1457, 2883, 4371, 4619, 7003, 13857, 21009, 45167, 135501, 143189, 217093, 429567, 651279, 6729883, 20189649]

約数ペア:

[(1, 20189649), (3, 6729883), (31, 651279), (47, 429567), (93, 217093), (141, 143189), (149, 135501), (447, 45167), (961, 21009), (1457, 13857), (2883, 7003), (4371, 4619)]