251878977

素因数分解:

$3^7\times 7^1\times {\mathrm{16453}}^1$

素因数の和:16481

約数の個数: 32

約数和(自身を含む): 431752960

約数和(自身を除く): 179873983

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 2187, 5103, 15309, 16453, 49359, 115171, 148077, 345513, 444231, 1036539, 1332693, 3109617, 3998079, 9328851, 11994237, 27986553, 35982711, 83959659, 251878977]

約数ペア:

[(1, 251878977), (3, 83959659), (7, 35982711), (9, 27986553), (21, 11994237), (27, 9328851), (63, 3998079), (81, 3109617), (189, 1332693), (243, 1036539), (567, 444231), (729, 345513), (1701, 148077), (2187, 115171), (5103, 49359), (15309, 16453)]