28189995

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{487}}^1$

素因数の和:739

約数の個数: 32

約数和(自身を含む): 48066048

約数和(自身を除く): 19876053

約数列:

[1, 3, 5, 15, 17, 51, 85, 227, 255, 487, 681, 1135, 1461, 2435, 3405, 3859, 7305, 8279, 11577, 19295, 24837, 41395, 57885, 110549, 124185, 331647, 552745, 1658235, 1879333, 5637999, 9396665, 28189995]

約数ペア:

[(1, 28189995), (3, 9396665), (5, 5637999), (15, 1879333), (17, 1658235), (51, 552745), (85, 331647), (227, 124185), (255, 110549), (487, 57885), (681, 41395), (1135, 24837), (1461, 19295), (2435, 11577), (3405, 8279), (3859, 7305)]