81780369

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{18089}}^1$

素因数の和:18240

約数の個数: 16

約数和(自身を含む): 119828160

約数和(自身を除く): 38047791

約数列:

[1, 3, 11, 33, 137, 411, 1507, 4521, 18089, 54267, 198979, 596937, 2478193, 7434579, 27260123, 81780369]

約数ペア:

[(1, 81780369), (3, 27260123), (11, 7434579), (33, 2478193), (137, 596937), (411, 198979), (1507, 54267), (4521, 18089)]