21293285

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{14243}}^1$

素因数の和:14284

約数の個数: 16

約数和(自身を含む): 28715904

約数和(自身を除く): 7422619

約数列:

[1, 5, 13, 23, 65, 115, 299, 1495, 14243, 71215, 185159, 327589, 925795, 1637945, 4258657, 21293285]

約数ペア:

[(1, 21293285), (5, 4258657), (13, 1637945), (23, 925795), (65, 327589), (115, 185159), (299, 71215), (1495, 14243)]