21845943

素因数分解:

$3^7\times 7^1\times {\mathrm{1427}}^1$

素因数の和:1455

約数の個数: 32

約数和(自身を含む): 37470720

約数和(自身を除く): 15624777

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1427, 1701, 2187, 4281, 5103, 9989, 12843, 15309, 29967, 38529, 89901, 115587, 269703, 346761, 809109, 1040283, 2427327, 3120849, 7281981, 21845943]

約数ペア:

[(1, 21845943), (3, 7281981), (7, 3120849), (9, 2427327), (21, 1040283), (27, 809109), (63, 346761), (81, 269703), (189, 115587), (243, 89901), (567, 38529), (729, 29967), (1427, 15309), (1701, 12843), (2187, 9989), (4281, 5103)]