21978022

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{52579}}^1$

素因数の和:52611

約数の個数: 16

約数和(自身を含む): 37857600

約数和(自身を除く): 15879578

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 52579, 105158, 578369, 999001, 1156738, 1998002, 10989011, 21978022]

約数ペア:

[(1, 21978022), (2, 10989011), (11, 1998002), (19, 1156738), (22, 999001), (38, 578369), (209, 105158), (418, 52579)]