18571973

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{653}}^1$

素因数の和:916

約数の個数: 16

約数和(自身を含む): 22602240

約数和(自身を除く): 4030267

約数列:

[1, 7, 17, 119, 239, 653, 1673, 4063, 4571, 11101, 28441, 77707, 156067, 1092469, 2653139, 18571973]

約数ペア:

[(1, 18571973), (7, 2653139), (17, 1092469), (119, 156067), (239, 77707), (653, 28441), (1673, 11101), (4063, 4571)]