21611284

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 43243200

約数和(自身を除く): 21631916

約数列:

[1, 2, 4, 17, 19, 34, 38, 43, 68, 76, 86, 172, 323, 389, 646, 731, 778, 817, 1292, 1462, 1556, 1634, 2924, 3268, 6613, 7391, 13226, 13889, 14782, 16727, 26452, 27778, 29564, 33454, 55556, 66908, 125647, 251294, 284359, 317813, 502588, 568718, 635626, 1137436, 1271252, 5402821, 10805642, 21611284]

約数ペア:

[(1, 21611284), (2, 10805642), (4, 5402821), (17, 1271252), (19, 1137436), (34, 635626), (38, 568718), (43, 502588), (68, 317813), (76, 284359), (86, 251294), (172, 125647), (323, 66908), (389, 55556), (646, 33454), (731, 29564), (778, 27778), (817, 26452), (1292, 16727), (1462, 14782), (1556, 13889), (1634, 13226), (2924, 7391), (3268, 6613)]