21060935

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:156

約数の個数: 48

約数和(自身を含む): 31518720

約数和(自身を除く): 10457785

約数列:

[1, 5, 7, 31, 35, 47, 49, 59, 155, 217, 235, 245, 295, 329, 413, 1085, 1457, 1519, 1645, 1829, 2065, 2303, 2773, 2891, 7285, 7595, 9145, 10199, 11515, 12803, 13865, 14455, 19411, 50995, 64015, 71393, 85963, 89621, 97055, 135877, 356965, 429815, 448105, 601741, 679385, 3008705, 4212187, 21060935]

約数ペア:

[(1, 21060935), (5, 4212187), (7, 3008705), (31, 679385), (35, 601741), (47, 448105), (49, 429815), (59, 356965), (155, 135877), (217, 97055), (235, 89621), (245, 85963), (295, 71393), (329, 64015), (413, 50995), (1085, 19411), (1457, 14455), (1519, 13865), (1645, 12803), (1829, 11515), (2065, 10199), (2303, 9145), (2773, 7595), (2891, 7285)]