81843663

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{421}}^1$

素因数の和:615

約数の個数: 32

約数和(自身を含む): 122994432

約数和(自身を除く): 41150769

約数列:

[1, 3, 11, 33, 43, 129, 137, 411, 421, 473, 1263, 1419, 1507, 4521, 4631, 5891, 13893, 17673, 18103, 54309, 57677, 64801, 173031, 194403, 199133, 597399, 634447, 1903341, 2480111, 7440333, 27281221, 81843663]

約数ペア:

[(1, 81843663), (3, 27281221), (11, 7440333), (33, 2480111), (43, 1903341), (129, 634447), (137, 597399), (411, 199133), (421, 194403), (473, 173031), (1263, 64801), (1419, 57677), (1507, 54309), (4521, 18103), (4631, 17673), (5891, 13893)]