28321995

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2381}}^1$

素因数の和:2463

約数の個数: 32

約数和(自身を含む): 49621824

約数和(自身を除く): 21299829

約数列:

[1, 3, 5, 13, 15, 39, 61, 65, 183, 195, 305, 793, 915, 2379, 2381, 3965, 7143, 11895, 11905, 30953, 35715, 92859, 145241, 154765, 435723, 464295, 726205, 1888133, 2178615, 5664399, 9440665, 28321995]

約数ペア:

[(1, 28321995), (3, 9440665), (5, 5664399), (13, 2178615), (15, 1888133), (39, 726205), (61, 464295), (65, 435723), (183, 154765), (195, 145241), (305, 92859), (793, 35715), (915, 30953), (2379, 11905), (2381, 11895), (3965, 7143)]