21208049283

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1\times {\mathrm{479}}^1\times {\mathrm{1217}}^1$

素因数の和:1947

約数の個数: 32

約数和(自身を含む): 28942018560

約数和(自身を除く): 7733969277

約数列:

[1, 3, 67, 181, 201, 479, 543, 1217, 1437, 3651, 12127, 32093, 36381, 81539, 86699, 96279, 220277, 244617, 260097, 582943, 660831, 1748829, 5808833, 14758559, 17426499, 39057181, 44275677, 105512683, 117171543, 316538049, 7069349761, 21208049283]

約数ペア:

[(1, 21208049283), (3, 7069349761), (67, 316538049), (181, 117171543), (201, 105512683), (479, 44275677), (543, 39057181), (1217, 17426499), (1437, 14758559), (3651, 5808833), (12127, 1748829), (32093, 660831), (36381, 582943), (81539, 260097), (86699, 244617), (96279, 220277)]