728973

素因数分解:

$3^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:71

約数の個数: 48

約数和(自身を含む): 1368000

約数和(自身を除く): 639027

約数列:

[1, 3, 7, 9, 19, 21, 27, 29, 49, 57, 63, 87, 133, 147, 171, 189, 203, 261, 399, 441, 513, 551, 609, 783, 931, 1197, 1323, 1421, 1653, 1827, 2793, 3591, 3857, 4263, 4959, 5481, 8379, 11571, 12789, 14877, 25137, 26999, 34713, 38367, 80997, 104139, 242991, 728973]

約数ペア:

[(1, 728973), (3, 242991), (7, 104139), (9, 80997), (19, 38367), (21, 34713), (27, 26999), (29, 25137), (49, 14877), (57, 12789), (63, 11571), (87, 8379), (133, 5481), (147, 4959), (171, 4263), (189, 3857), (203, 3591), (261, 2793), (399, 1827), (441, 1653), (513, 1421), (551, 1323), (609, 1197), (783, 931)]