21811799

素因数分解:

${\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{293}}^1$

素因数の和:490

約数の個数: 16

約数和(自身を含む): 24131520

約数和(自身を除く): 2319721

約数列:

[1, 17, 29, 151, 293, 493, 2567, 4379, 4981, 8497, 44243, 74443, 144449, 752131, 1283047, 21811799]

約数ペア:

[(1, 21811799), (17, 1283047), (29, 752131), (151, 144449), (293, 74443), (493, 44243), (2567, 8497), (4379, 4981)]