20463565

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^2$

素因数の和:189

約数の個数: 24

約数和(自身を含む): 26385408

約数和(自身を除く): 5921843

約数列:

[1, 5, 31, 47, 53, 155, 235, 265, 1457, 1643, 2491, 2809, 7285, 8215, 12455, 14045, 77221, 87079, 132023, 386105, 435395, 660115, 4092713, 20463565]

約数ペア:

[(1, 20463565), (5, 4092713), (31, 660115), (47, 435395), (53, 386105), (155, 132023), (235, 87079), (265, 77221), (1457, 14045), (1643, 12455), (2491, 8215), (2809, 7285)]