21310510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163927}}^1$

素因数の和:163947

約数の個数: 16

約数和(自身を含む): 41309856

約数和(自身を除く): 19999346

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 163927, 327854, 819635, 1639270, 2131051, 4262102, 10655255, 21310510]

約数ペア:

[(1, 21310510), (2, 10655255), (5, 4262102), (10, 2131051), (13, 1639270), (26, 819635), (65, 327854), (130, 163927)]