378189

素因数分解:

$3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:71

約数の個数: 40

約数和(自身を含む): 696960

約数和(自身を除く): 318771

約数列:

[1, 3, 7, 9, 21, 23, 27, 29, 63, 69, 81, 87, 161, 189, 203, 207, 261, 483, 567, 609, 621, 667, 783, 1449, 1827, 1863, 2001, 2349, 4347, 4669, 5481, 6003, 13041, 14007, 16443, 18009, 42021, 54027, 126063, 378189]

約数ペア:

[(1, 378189), (3, 126063), (7, 54027), (9, 42021), (21, 18009), (23, 16443), (27, 14007), (29, 13041), (63, 6003), (69, 5481), (81, 4669), (87, 4347), (161, 2349), (189, 2001), (203, 1863), (207, 1827), (261, 1449), (483, 783), (567, 667), (609, 621)]