21372021

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{3539}}^1$

素因数の和:3617

約数の個数: 24

約数和(自身を含む): 34238880

約数和(自身を除く): 12866859

約数列:

[1, 3, 9, 11, 33, 61, 99, 183, 549, 671, 2013, 3539, 6039, 10617, 31851, 38929, 116787, 215879, 350361, 647637, 1942911, 2374669, 7124007, 21372021]

約数ペア:

[(1, 21372021), (3, 7124007), (9, 2374669), (11, 1942911), (33, 647637), (61, 350361), (99, 215879), (183, 116787), (549, 38929), (671, 31851), (2013, 10617), (3539, 6039)]