21892311

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{20441}}^1$

素因数の和:20471

約数の個数: 24

約数和(自身を含む): 38267424

約数和(自身を除く): 16375113

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 20441, 61323, 143087, 183969, 347497, 429261, 1042491, 1287783, 2432479, 3127473, 7297437, 21892311]

約数ペア:

[(1, 21892311), (3, 7297437), (7, 3127473), (9, 2432479), (17, 1287783), (21, 1042491), (51, 429261), (63, 347497), (119, 183969), (153, 143087), (357, 61323), (1071, 20441)]