221705

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:184

約数の個数: 16

約数和(自身を含む): 302400

約数和(自身を除く): 80695

約数列:

[1, 5, 11, 29, 55, 139, 145, 319, 695, 1529, 1595, 4031, 7645, 20155, 44341, 221705]

約数ペア:

[(1, 221705), (5, 44341), (11, 20155), (29, 7645), (55, 4031), (139, 1595), (145, 1529), (319, 695)]