15381621

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{293}}^1\times {\mathrm{307}}^1$

素因数の和:625

約数の個数: 24

約数和(自身を含む): 23543520

約数和(自身を除く): 8161899

約数列:

[1, 3, 9, 19, 57, 171, 293, 307, 879, 921, 2637, 2763, 5567, 5833, 16701, 17499, 50103, 52497, 89951, 269853, 809559, 1709069, 5127207, 15381621]

約数ペア:

[(1, 15381621), (3, 5127207), (9, 1709069), (19, 809559), (57, 269853), (171, 89951), (293, 52497), (307, 50103), (879, 17499), (921, 16701), (2637, 5833), (2763, 5567)]