28781235

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{91369}}^1$

素因数の和:91387

約数の個数: 24

約数和(自身を含む): 57014880

約数和(自身を除く): 28233645

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 91369, 274107, 456845, 639583, 822321, 1370535, 1918749, 3197915, 4111605, 5756247, 9593745, 28781235]

約数ペア:

[(1, 28781235), (3, 9593745), (5, 5756247), (7, 4111605), (9, 3197915), (15, 1918749), (21, 1370535), (35, 822321), (45, 639583), (63, 456845), (105, 274107), (315, 91369)]