21196955

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{3929}}^1$

素因数の和:4030

約数の個数: 16

約数和(自身を含む): 27730080

約数和(自身を除く): 6533125

約数列:

[1, 5, 13, 65, 83, 415, 1079, 3929, 5395, 19645, 51077, 255385, 326107, 1630535, 4239391, 21196955]

約数ペア:

[(1, 21196955), (5, 4239391), (13, 1630535), (65, 326107), (83, 255385), (415, 51077), (1079, 19645), (3929, 5395)]