19211921

素因数分解:

${\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1$

素因数の和:340

約数の個数: 16

約数和(自身を含む): 20955024

約数和(自身を除く): 1743103

約数列:

[1, 17, 73, 113, 137, 1241, 1921, 2329, 8249, 10001, 15481, 140233, 170017, 263177, 1130113, 19211921]

約数ペア:

[(1, 19211921), (17, 1130113), (73, 263177), (113, 170017), (137, 140233), (1241, 15481), (1921, 10001), (2329, 8249)]