21000391656

素因数分解:

$2^3\times 3^1\times {\mathrm{1019}}^1\times {\mathrm{858701}}^1$

素因数の和:859729

約数の個数: 32

約数和(自身を含む): 52552562400

約数和(自身を除く): 31552170744

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 1019, 2038, 3057, 4076, 6114, 8152, 12228, 24456, 858701, 1717402, 2576103, 3434804, 5152206, 6869608, 10304412, 20608824, 875016319, 1750032638, 2625048957, 3500065276, 5250097914, 7000130552, 10500195828, 21000391656]

約数ペア:

[(1, 21000391656), (2, 10500195828), (3, 7000130552), (4, 5250097914), (6, 3500065276), (8, 2625048957), (12, 1750032638), (24, 875016319), (1019, 20608824), (2038, 10304412), (3057, 6869608), (4076, 5152206), (6114, 3434804), (8152, 2576103), (12228, 1717402), (24456, 858701)]