21521228

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{281}}^1\times {\mathrm{467}}^1$

素因数の和:793

約数の個数: 24

約数和(自身を含む): 38800944

約数和(自身を除く): 17279716

約数列:

[1, 2, 4, 41, 82, 164, 281, 467, 562, 934, 1124, 1868, 11521, 19147, 23042, 38294, 46084, 76588, 131227, 262454, 524908, 5380307, 10760614, 21521228]

約数ペア:

[(1, 21521228), (2, 10760614), (4, 5380307), (41, 524908), (82, 262454), (164, 131227), (281, 76588), (467, 46084), (562, 38294), (934, 23042), (1124, 19147), (1868, 11521)]