21117976

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{239977}}^1$

素因数の和:239994

約数の個数: 16

約数和(自身を含む): 43196040

約数和(自身を除く): 22078064

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 239977, 479954, 959908, 1919816, 2639747, 5279494, 10558988, 21117976]

約数ペア:

[(1, 21117976), (2, 10558988), (4, 5279494), (8, 2639747), (11, 1919816), (22, 959908), (44, 479954), (88, 239977)]