21009662015

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{3300811}}^1$

素因数の和:3300902

約数の個数: 16

約数和(自身を含む): 26934625920

約数和(自身を除く): 5924963905

約数列:

[1, 5, 19, 67, 95, 335, 1273, 6365, 3300811, 16504055, 62715409, 221154337, 313577045, 1105771685, 4201932403, 21009662015]

約数ペア:

[(1, 21009662015), (5, 4201932403), (19, 1105771685), (67, 313577045), (95, 221154337), (335, 62715409), (1273, 16504055), (6365, 3300811)]