291207231

素因数分解:

$3^4\times 7^1\times {\mathrm{513593}}^1$

素因数の和:513612

約数の個数: 20

約数和(自身を含む): 497158992

約数和(自身を除く): 205951761

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 513593, 1540779, 3595151, 4622337, 10785453, 13867011, 32356359, 41601033, 97069077, 291207231]

約数ペア:

[(1, 291207231), (3, 97069077), (7, 41601033), (9, 32356359), (21, 13867011), (27, 10785453), (63, 4622337), (81, 3595151), (189, 1540779), (567, 513593)]