21269348

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{3989}}^1$

素因数の和:4067

約数の個数: 24

約数和(自身を含む): 39325440

約数和(自身を除く): 18056092

約数列:

[1, 2, 4, 31, 43, 62, 86, 124, 172, 1333, 2666, 3989, 5332, 7978, 15956, 123659, 171527, 247318, 343054, 494636, 686108, 5317337, 10634674, 21269348]

約数ペア:

[(1, 21269348), (2, 10634674), (4, 5317337), (31, 686108), (43, 494636), (62, 343054), (86, 247318), (124, 171527), (172, 123659), (1333, 15956), (2666, 7978), (3989, 5332)]