21255117864

素因数分解:

$2^3\times 3^1\times {\mathrm{613}}^1\times {\mathrm{1444747}}^1$

素因数の和:1445369

約数の個数: 32

約数和(自身を含む): 53224516320

約数和(自身を除く): 31969398456

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 613, 1226, 1839, 2452, 3678, 4904, 7356, 14712, 1444747, 2889494, 4334241, 5778988, 8668482, 11557976, 17336964, 34673928, 885629911, 1771259822, 2656889733, 3542519644, 5313779466, 7085039288, 10627558932, 21255117864]

約数ペア:

[(1, 21255117864), (2, 10627558932), (3, 7085039288), (4, 5313779466), (6, 3542519644), (8, 2656889733), (12, 1771259822), (24, 885629911), (613, 34673928), (1226, 17336964), (1839, 11557976), (2452, 8668482), (3678, 5778988), (4904, 4334241), (7356, 2889494), (14712, 1444747)]