21739762

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{52009}}^1$

素因数の和:52041

約数の個数: 16

約数和(自身を含む): 37447200

約数和(自身を除く): 15707438

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 52009, 104018, 572099, 988171, 1144198, 1976342, 10869881, 21739762]

約数ペア:

[(1, 21739762), (2, 10869881), (11, 1976342), (19, 1144198), (22, 988171), (38, 572099), (209, 104018), (418, 52009)]