21189974

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{22027}}^1$

素因数の和:22079

約数の個数: 16

約数和(自身を含む): 35156688

約数和(自身を除く): 13966714

約数列:

[1, 2, 13, 26, 37, 74, 481, 962, 22027, 44054, 286351, 572702, 814999, 1629998, 10594987, 21189974]

約数ペア:

[(1, 21189974), (2, 10594987), (13, 1629998), (26, 814999), (37, 572702), (74, 286351), (481, 44054), (962, 22027)]