213003

素因数分解:

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

素因数の和:53

約数の個数: 32

約数和(自身を含む): 384000

約数和(自身を除く): 170997

約数列:

[1, 3, 7, 9, 21, 23, 27, 49, 63, 69, 147, 161, 189, 207, 343, 441, 483, 621, 1029, 1127, 1323, 1449, 3087, 3381, 4347, 7889, 9261, 10143, 23667, 30429, 71001, 213003]

約数ペア:

[(1, 213003), (3, 71001), (7, 30429), (9, 23667), (21, 10143), (23, 9261), (27, 7889), (49, 4347), (63, 3381), (69, 3087), (147, 1449), (161, 1323), (189, 1127), (207, 1029), (343, 621), (441, 483)]