20384815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{19507}}^1$

素因数の和:19542

約数の個数: 16

約数和(自身を含む): 28091520

約数和(自身を除く): 7706705

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 19507, 97535, 214577, 370633, 1072885, 1853165, 4076963, 20384815]

約数ペア:

[(1, 20384815), (5, 4076963), (11, 1853165), (19, 1072885), (55, 370633), (95, 214577), (209, 97535), (1045, 19507)]