16393671

素因数分解:

$3^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{997}}^1$

素因数の和:1045

約数の個数: 40

約数和(自身を含む): 28981920

約数和(自身を除く): 12588249

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 81, 87, 189, 203, 261, 567, 609, 783, 997, 1827, 2349, 2991, 5481, 6979, 8973, 16443, 20937, 26919, 28913, 62811, 80757, 86739, 188433, 202391, 260217, 565299, 607173, 780651, 1821519, 2341953, 5464557, 16393671]

約数ペア:

[(1, 16393671), (3, 5464557), (7, 2341953), (9, 1821519), (21, 780651), (27, 607173), (29, 565299), (63, 260217), (81, 202391), (87, 188433), (189, 86739), (203, 80757), (261, 62811), (567, 28913), (609, 26919), (783, 20937), (997, 16443), (1827, 8973), (2349, 6979), (2991, 5481)]