21682305

素因数分解:

$3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3517}}^1$

素因数の和:3665

約数の個数: 24

約数和(自身を含む): 37867752

約数和(自身を除く): 16185447

約数列:

[1, 3, 5, 9, 15, 45, 137, 411, 685, 1233, 2055, 3517, 6165, 10551, 17585, 31653, 52755, 158265, 481829, 1445487, 2409145, 4336461, 7227435, 21682305]

約数ペア:

[(1, 21682305), (3, 7227435), (5, 4336461), (9, 2409145), (15, 1445487), (45, 481829), (137, 158265), (411, 52755), (685, 31653), (1233, 17585), (2055, 10551), (3517, 6165)]