21951344

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{20477}}^1$

素因数の和:20552

約数の個数: 20

約数和(自身を含む): 43167624

約数和(自身を除く): 21216280

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 20477, 40954, 81908, 163816, 327632, 1371959, 2743918, 5487836, 10975672, 21951344]

約数ペア:

[(1, 21951344), (2, 10975672), (4, 5487836), (8, 2743918), (16, 1371959), (67, 327632), (134, 163816), (268, 81908), (536, 40954), (1072, 20477)]