21240584

素因数分解:

$2^3\times {\mathrm{1013}}^1\times {\mathrm{2621}}^1$

素因数の和:3640

約数の個数: 16

約数和(自身を含む): 39880620

約数和(自身を除く): 18640036

約数列:

[1, 2, 4, 8, 1013, 2026, 2621, 4052, 5242, 8104, 10484, 20968, 2655073, 5310146, 10620292, 21240584]

約数ペア:

[(1, 21240584), (2, 10620292), (4, 5310146), (8, 2655073), (1013, 20968), (2026, 10484), (2621, 8104), (4052, 5242)]