21590793

素因数分解:

$3^6\times 7^1\times {\mathrm{4231}}^1$

素因数の和:4256

約数の個数: 28

約数和(自身を含む): 37004608

約数和(自身を除く): 15413815

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 4231, 5103, 12693, 29617, 38079, 88851, 114237, 266553, 342711, 799659, 1028133, 2398977, 3084399, 7196931, 21590793]

約数ペア:

[(1, 21590793), (3, 7196931), (7, 3084399), (9, 2398977), (21, 1028133), (27, 799659), (63, 342711), (81, 266553), (189, 114237), (243, 88851), (567, 38079), (729, 29617), (1701, 12693), (4231, 5103)]