81549904

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{221603}}^1$

素因数の和:221634

約数の個数: 20

約数和(自身を含む): 164873376

約数和(自身を除く): 83323472

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 221603, 443206, 886412, 1772824, 3545648, 5096869, 10193738, 20387476, 40774952, 81549904]

約数ペア:

[(1, 81549904), (2, 40774952), (4, 20387476), (8, 10193738), (16, 5096869), (23, 3545648), (46, 1772824), (92, 886412), (184, 443206), (368, 221603)]