20686178

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{4441}}^1$

素因数の和:4597

約数の個数: 16

約数和(自身を含む): 33101784

約数和(自身を除く): 12415606

約数列:

[1, 2, 17, 34, 137, 274, 2329, 4441, 4658, 8882, 75497, 150994, 608417, 1216834, 10343089, 20686178]

約数ペア:

[(1, 20686178), (2, 10343089), (17, 1216834), (34, 608417), (137, 150994), (274, 75497), (2329, 8882), (4441, 4658)]