21376648

素因数分解:

$2^3\times {\mathrm{313}}^1\times {\mathrm{8537}}^1$

素因数の和:8856

約数の個数: 16

約数和(自身を含む): 40213980

約数和(自身を除く): 18837332

約数列:

[1, 2, 4, 8, 313, 626, 1252, 2504, 8537, 17074, 34148, 68296, 2672081, 5344162, 10688324, 21376648]

約数ペア:

[(1, 21376648), (2, 10688324), (4, 5344162), (8, 2672081), (313, 68296), (626, 34148), (1252, 17074), (2504, 8537)]