21155764

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{24373}}^1$

素因数の和:24415

約数の個数: 24

約数和(自身を含む): 43678208

約数和(自身を除く): 22522444

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 24373, 48746, 97492, 170611, 341222, 682444, 755563, 1511126, 3022252, 5288941, 10577882, 21155764]

約数ペア:

[(1, 21155764), (2, 10577882), (4, 5288941), (7, 3022252), (14, 1511126), (28, 755563), (31, 682444), (62, 341222), (124, 170611), (217, 97492), (434, 48746), (868, 24373)]