21740427

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{42379}}^1$

素因数の和:42407

約数の個数: 16

約数和(自身を含む): 33904000

約数和(自身を除く): 12163573

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 42379, 127137, 381411, 805201, 1144233, 2415603, 7246809, 21740427]

約数ペア:

[(1, 21740427), (3, 7246809), (9, 2415603), (19, 1144233), (27, 805201), (57, 381411), (171, 127137), (513, 42379)]