247909977

素因数分解:

$3^4\times 7^1\times {\mathrm{509}}^1\times {\mathrm{859}}^1$

素因数の和:1387

約数の個数: 40

約数和(自身を含む): 424564800

約数和(自身を除く): 176654823

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 509, 567, 859, 1527, 2577, 3563, 4581, 6013, 7731, 10689, 13743, 18039, 23193, 32067, 41229, 54117, 69579, 96201, 162351, 288603, 437231, 487053, 1311693, 3060617, 3935079, 9181851, 11805237, 27545553, 35415711, 82636659, 247909977]

約数ペア:

[(1, 247909977), (3, 82636659), (7, 35415711), (9, 27545553), (21, 11805237), (27, 9181851), (63, 3935079), (81, 3060617), (189, 1311693), (509, 487053), (567, 437231), (859, 288603), (1527, 162351), (2577, 96201), (3563, 69579), (4581, 54117), (6013, 41229), (7731, 32067), (10689, 23193), (13743, 18039)]