21369513

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{6287}}^1$

素因数の和:6404

約数の個数: 16

約数和(自身を含む): 31389696

約数和(自身を除く): 10020183

約数列:

[1, 3, 11, 33, 103, 309, 1133, 3399, 6287, 18861, 69157, 207471, 647561, 1942683, 7123171, 21369513]

約数ペア:

[(1, 21369513), (3, 7123171), (11, 1942683), (33, 647561), (103, 207471), (309, 69157), (1133, 18861), (3399, 6287)]