21856169

素因数分解:

${\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1031}}^1$

素因数の和:1120

約数の個数: 16

約数和(自身を含む): 24520320

約数和(自身を除く): 2664151

約数列:

[1, 17, 29, 43, 493, 731, 1031, 1247, 17527, 21199, 29899, 44333, 508283, 753661, 1285657, 21856169]

約数ペア:

[(1, 21856169), (17, 1285657), (29, 753661), (43, 508283), (493, 44333), (731, 29899), (1031, 21199), (1247, 17527)]