21000739233

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{491}}^1\times {\mathrm{1861}}^1$

素因数の和:2565

約数の個数: 32

約数和(自身を含む): 28846282752

約数和(自身を除く): 7845543519

約数列:

[1, 3, 47, 141, 163, 489, 491, 1473, 1861, 5583, 7661, 22983, 23077, 69231, 80033, 87467, 240099, 262401, 303343, 910029, 913751, 2741253, 3761551, 11284653, 14257121, 42771363, 42946297, 128838891, 148941413, 446824239, 7000246411, 21000739233]

約数ペア:

[(1, 21000739233), (3, 7000246411), (47, 446824239), (141, 148941413), (163, 128838891), (489, 42946297), (491, 42771363), (1473, 14257121), (1861, 11284653), (5583, 3761551), (7661, 2741253), (22983, 913751), (23077, 910029), (69231, 303343), (80033, 262401), (87467, 240099)]