20867483

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:132

約数の個数: 48

約数和(自身を含む): 28957824

約数和(自身を除く): 8090341

約数列:

[1, 7, 13, 17, 41, 47, 49, 91, 119, 221, 287, 329, 533, 611, 637, 697, 799, 833, 1547, 1927, 2009, 2303, 3731, 4277, 4879, 5593, 9061, 10387, 10829, 13489, 25051, 26117, 29939, 32759, 34153, 39151, 63427, 72709, 94423, 175357, 229313, 425867, 443989, 508963, 1227499, 1605191, 2981069, 20867483]

約数ペア:

[(1, 20867483), (7, 2981069), (13, 1605191), (17, 1227499), (41, 508963), (47, 443989), (49, 425867), (91, 229313), (119, 175357), (221, 94423), (287, 72709), (329, 63427), (533, 39151), (611, 34153), (637, 32759), (697, 29939), (799, 26117), (833, 25051), (1547, 13489), (1927, 10829), (2009, 10387), (2303, 9061), (3731, 5593), (4277, 4879)]