20843628

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2521}}^1$

素因数の和:2594

約数の個数: 48

約数和(自身を含む): 53385696

約数和(自身を除く): 32542068

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 53, 78, 106, 156, 159, 212, 318, 636, 689, 1378, 2067, 2521, 2756, 4134, 5042, 7563, 8268, 10084, 15126, 30252, 32773, 65546, 98319, 131092, 133613, 196638, 267226, 393276, 400839, 534452, 801678, 1603356, 1736969, 3473938, 5210907, 6947876, 10421814, 20843628]

約数ペア:

[(1, 20843628), (2, 10421814), (3, 6947876), (4, 5210907), (6, 3473938), (12, 1736969), (13, 1603356), (26, 801678), (39, 534452), (52, 400839), (53, 393276), (78, 267226), (106, 196638), (156, 133613), (159, 131092), (212, 98319), (318, 65546), (636, 32773), (689, 30252), (1378, 15126), (2067, 10084), (2521, 8268), (2756, 7563), (4134, 5042)]