21006916

素因数分解:

$2^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{6883}}^1$

素因数の和:7003

約数の個数: 24

約数和(自身を含む): 42405440

約数和(自身を除く): 21398524

約数列:

[1, 2, 4, 7, 14, 28, 109, 218, 436, 763, 1526, 3052, 6883, 13766, 27532, 48181, 96362, 192724, 750247, 1500494, 3000988, 5251729, 10503458, 21006916]

約数ペア:

[(1, 21006916), (2, 10503458), (4, 5251729), (7, 3000988), (14, 1500494), (28, 750247), (109, 192724), (218, 96362), (436, 48181), (763, 27532), (1526, 13766), (3052, 6883)]