28388115

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{90121}}^1$

素因数の和:90139

約数の個数: 24

約数和(自身を含む): 56236128

約数和(自身を除く): 27848013

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 90121, 270363, 450605, 630847, 811089, 1351815, 1892541, 3154235, 4055445, 5677623, 9462705, 28388115]

約数ペア:

[(1, 28388115), (3, 9462705), (5, 5677623), (7, 4055445), (9, 3154235), (15, 1892541), (21, 1351815), (35, 811089), (45, 630847), (63, 450605), (105, 270363), (315, 90121)]