21630340

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{23011}}^1$

素因数の和:23067

約数の個数: 24

約数和(自身を含む): 46392192

約数和(自身を除く): 24761852

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 23011, 46022, 92044, 115055, 230110, 460220, 1081517, 2163034, 4326068, 5407585, 10815170, 21630340]

約数ペア:

[(1, 21630340), (2, 10815170), (4, 5407585), (5, 4326068), (10, 2163034), (20, 1081517), (47, 460220), (94, 230110), (188, 115055), (235, 92044), (470, 46022), (940, 23011)]