30891345

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{2143}}^1$

素因数の和:2213

約数の個数: 24

約数和(自身を含む): 51095808

約数和(自身を除く): 20204463

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 961, 2143, 2883, 4805, 6429, 10715, 14415, 32145, 66433, 199299, 332165, 996495, 2059423, 6178269, 10297115, 30891345]

約数ペア:

[(1, 30891345), (3, 10297115), (5, 6178269), (15, 2059423), (31, 996495), (93, 332165), (155, 199299), (465, 66433), (961, 32145), (2143, 14415), (2883, 10715), (4805, 6429)]