638049321

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{45827}}^1$

素因数の和:45870

約数の個数: 48

約数和(自身を含む): 1201060224

約数和(自身を除く): 563010903

約数列:

[1, 3, 7, 9, 13, 17, 21, 39, 51, 63, 91, 117, 119, 153, 221, 273, 357, 663, 819, 1071, 1547, 1989, 4641, 13923, 45827, 137481, 320789, 412443, 595751, 779059, 962367, 1787253, 2337177, 2887101, 4170257, 5361759, 5453413, 7011531, 10127767, 12510771, 16360239, 30383301, 37532313, 49080717, 70894369, 91149903, 212683107, 638049321]

約数ペア:

[(1, 638049321), (3, 212683107), (7, 91149903), (9, 70894369), (13, 49080717), (17, 37532313), (21, 30383301), (39, 16360239), (51, 12510771), (63, 10127767), (91, 7011531), (117, 5453413), (119, 5361759), (153, 4170257), (221, 2887101), (273, 2337177), (357, 1787253), (663, 962367), (819, 779059), (1071, 595751), (1547, 412443), (1989, 320789), (4641, 137481), (13923, 45827)]