647703

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:188

約数の個数: 32

約数和(自身を含む): 1152000

約数和(自身を除く): 504297

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 149, 161, 189, 207, 447, 483, 621, 1043, 1341, 1449, 3129, 3427, 4023, 4347, 9387, 10281, 23989, 28161, 30843, 71967, 92529, 215901, 647703]

約数ペア:

[(1, 647703), (3, 215901), (7, 92529), (9, 71967), (21, 30843), (23, 28161), (27, 23989), (63, 10281), (69, 9387), (149, 4347), (161, 4023), (189, 3427), (207, 3129), (447, 1449), (483, 1341), (621, 1043)]