253449

素因数分解:

$3^5\times 7^1\times {\mathrm{149}}^1$

素因数の和:171

約数の個数: 24

約数和(自身を含む): 436800

約数和(自身を除く): 183351

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 149, 189, 243, 447, 567, 1043, 1341, 1701, 3129, 4023, 9387, 12069, 28161, 36207, 84483, 253449]

約数ペア:

[(1, 253449), (3, 84483), (7, 36207), (9, 28161), (21, 12069), (27, 9387), (63, 4023), (81, 3129), (149, 1701), (189, 1341), (243, 1043), (447, 567)]