21125608

素因数分解:

$2^3\times 7^1\times {\mathrm{311}}^1\times {\mathrm{1213}}^1$

素因数の和:1537

約数の個数: 32

約数和(自身を含む): 45452160

約数和(自身を除く): 24326552

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 311, 622, 1213, 1244, 2177, 2426, 2488, 4354, 4852, 8491, 8708, 9704, 16982, 17416, 33964, 67928, 377243, 754486, 1508972, 2640701, 3017944, 5281402, 10562804, 21125608]

約数ペア:

[(1, 21125608), (2, 10562804), (4, 5281402), (7, 3017944), (8, 2640701), (14, 1508972), (28, 754486), (56, 377243), (311, 67928), (622, 33964), (1213, 17416), (1244, 16982), (2177, 9704), (2426, 8708), (2488, 8491), (4354, 4852)]