21321477

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1861}}^1$

素因数の和:1953

約数の個数: 24

約数和(自身を含む): 32920160

約数和(自身を除く): 11598683

約数列:

[1, 3, 9, 19, 57, 67, 171, 201, 603, 1273, 1861, 3819, 5583, 11457, 16749, 35359, 106077, 124687, 318231, 374061, 1122183, 2369053, 7107159, 21321477]

約数ペア:

[(1, 21321477), (3, 7107159), (9, 2369053), (19, 1122183), (57, 374061), (67, 318231), (171, 124687), (201, 106077), (603, 35359), (1273, 16749), (1861, 11457), (3819, 5583)]