21604490

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{1069}}^1$

素因数の和:1166

約数の個数: 32

約数和(自身を含む): 40677120

約数和(自身を除く): 19072630

約数列:

[1, 2, 5, 10, 43, 47, 86, 94, 215, 235, 430, 470, 1069, 2021, 2138, 4042, 5345, 10105, 10690, 20210, 45967, 50243, 91934, 100486, 229835, 251215, 459670, 502430, 2160449, 4320898, 10802245, 21604490]

約数ペア:

[(1, 21604490), (2, 10802245), (5, 4320898), (10, 2160449), (43, 502430), (47, 459670), (86, 251215), (94, 229835), (215, 100486), (235, 91934), (430, 50243), (470, 45967), (1069, 20210), (2021, 10690), (2138, 10105), (4042, 5345)]