28718505

素因数分解:

$3^2\times 5^1\times {\mathrm{619}}^1\times {\mathrm{1031}}^1$

素因数の和:1661

約数の個数: 24

約数和(自身を含む): 49907520

約数和(自身を除く): 21189015

約数列:

[1, 3, 5, 9, 15, 45, 619, 1031, 1857, 3093, 3095, 5155, 5571, 9279, 9285, 15465, 27855, 46395, 638189, 1914567, 3190945, 5743701, 9572835, 28718505]

約数ペア:

[(1, 28718505), (3, 9572835), (5, 5743701), (9, 3190945), (15, 1914567), (45, 638189), (619, 46395), (1031, 27855), (1857, 15465), (3093, 9285), (3095, 9279), (5155, 5571)]