21385564

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{5987}}^1$

素因数の和:6057

約数の個数: 24

約数和(自身を含む): 40239360

約数和(自身を除く): 18853796

約数列:

[1, 2, 4, 19, 38, 47, 76, 94, 188, 893, 1786, 3572, 5987, 11974, 23948, 113753, 227506, 281389, 455012, 562778, 1125556, 5346391, 10692782, 21385564]

約数ペア:

[(1, 21385564), (2, 10692782), (4, 5346391), (19, 1125556), (38, 562778), (47, 455012), (76, 281389), (94, 227506), (188, 113753), (893, 23948), (1786, 11974), (3572, 5987)]