20611395

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1283}}^1$

素因数の和:1321

約数の個数: 64

約数和(自身を含む): 44375040

約数和(自身を除く): 23763645

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 27, 35, 45, 51, 63, 85, 105, 119, 135, 153, 189, 255, 315, 357, 459, 595, 765, 945, 1071, 1283, 1785, 2295, 3213, 3849, 5355, 6415, 8981, 11547, 16065, 19245, 21811, 26943, 34641, 44905, 57735, 65433, 80829, 109055, 134715, 152677, 173205, 196299, 242487, 327165, 404145, 458031, 588897, 763385, 981495, 1212435, 1374093, 2290155, 2944485, 4122279, 6870465, 20611395]

約数ペア:

[(1, 20611395), (3, 6870465), (5, 4122279), (7, 2944485), (9, 2290155), (15, 1374093), (17, 1212435), (21, 981495), (27, 763385), (35, 588897), (45, 458031), (51, 404145), (63, 327165), (85, 242487), (105, 196299), (119, 173205), (135, 152677), (153, 134715), (189, 109055), (255, 80829), (315, 65433), (357, 57735), (459, 44905), (595, 34641), (765, 26943), (945, 21811), (1071, 19245), (1283, 16065), (1785, 11547), (2295, 8981), (3213, 6415), (3849, 5355)]