21159203

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1429}}^1$

素因数の和:1526

約数の個数: 16

約数和(自身を含む): 24504480

約数和(自身を除く): 3345277

約数列:

[1, 13, 17, 67, 221, 871, 1139, 1429, 14807, 18577, 24293, 95743, 315809, 1244659, 1627631, 21159203]

約数ペア:

[(1, 21159203), (13, 1627631), (17, 1244659), (67, 315809), (221, 95743), (871, 24293), (1139, 18577), (1429, 14807)]