19757860

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{21019}}^1$

素因数の和:21075

約数の個数: 24

約数和(自身を含む): 42376320

約数和(自身を除く): 22618460

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 21019, 42038, 84076, 105095, 210190, 420380, 987893, 1975786, 3951572, 4939465, 9878930, 19757860]

約数ペア:

[(1, 19757860), (2, 9878930), (4, 4939465), (5, 3951572), (10, 1975786), (20, 987893), (47, 420380), (94, 210190), (188, 105095), (235, 84076), (470, 42038), (940, 21019)]