8157804921

素因数分解:

$3^4\times 7^1\times {\mathrm{3181}}^1\times {\mathrm{4523}}^1$

素因数の和:7723

約数の個数: 40

約数和(自身を含む): 13934716224

約数和(自身を除く): 5776911303

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 3181, 4523, 9543, 13569, 22267, 28629, 31661, 40707, 66801, 85887, 94983, 122121, 200403, 257661, 284949, 366363, 601209, 854847, 1803627, 2564541, 14387663, 43162989, 100713641, 129488967, 302140923, 388466901, 906422769, 1165400703, 2719268307, 8157804921]

約数ペア:

[(1, 8157804921), (3, 2719268307), (7, 1165400703), (9, 906422769), (21, 388466901), (27, 302140923), (63, 129488967), (81, 100713641), (189, 43162989), (567, 14387663), (3181, 2564541), (4523, 1803627), (9543, 854847), (13569, 601209), (22267, 366363), (28629, 284949), (31661, 257661), (40707, 200403), (66801, 122121), (85887, 94983)]