19905402

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:303

約数の個数: 64

約数和(自身を含む): 46687104

約数和(自身を除く): 26781702

約数列:

[1, 2, 3, 6, 11, 17, 22, 33, 34, 51, 66, 102, 113, 157, 187, 226, 314, 339, 374, 471, 561, 678, 942, 1122, 1243, 1727, 1921, 2486, 2669, 3454, 3729, 3842, 5181, 5338, 5763, 7458, 8007, 10362, 11526, 16014, 17741, 21131, 29359, 35482, 42262, 53223, 58718, 63393, 88077, 106446, 126786, 176154, 195151, 301597, 390302, 585453, 603194, 904791, 1170906, 1809582, 3317567, 6635134, 9952701, 19905402]

約数ペア:

[(1, 19905402), (2, 9952701), (3, 6635134), (6, 3317567), (11, 1809582), (17, 1170906), (22, 904791), (33, 603194), (34, 585453), (51, 390302), (66, 301597), (102, 195151), (113, 176154), (157, 126786), (187, 106446), (226, 88077), (314, 63393), (339, 58718), (374, 53223), (471, 42262), (561, 35482), (678, 29359), (942, 21131), (1122, 17741), (1243, 16014), (1727, 11526), (1921, 10362), (2486, 8007), (2669, 7458), (3454, 5763), (3729, 5338), (3842, 5181)]