21439961

素因数分解:

${\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{167}}^1\times {\mathrm{233}}^1$

素因数の和:448

約数の個数: 16

約数和(自身を含む): 23587200

約数和(自身を除く): 2147239

約数列:

[1, 19, 29, 167, 233, 551, 3173, 4427, 4843, 6757, 38911, 92017, 128383, 739309, 1128419, 21439961]

約数ペア:

[(1, 21439961), (19, 1128419), (29, 739309), (167, 128383), (233, 92017), (551, 38911), (3173, 6757), (4427, 4843)]