19967574

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 45868032

約数和(自身を除く): 25900458

約数列:

[1, 2, 3, 6, 11, 22, 33, 41, 47, 66, 82, 94, 123, 141, 157, 246, 282, 314, 451, 471, 517, 902, 942, 1034, 1353, 1551, 1727, 1927, 2706, 3102, 3454, 3854, 5181, 5781, 6437, 7379, 10362, 11562, 12874, 14758, 19311, 21197, 22137, 38622, 42394, 44274, 63591, 70807, 81169, 127182, 141614, 162338, 212421, 243507, 302539, 424842, 487014, 605078, 907617, 1815234, 3327929, 6655858, 9983787, 19967574]

約数ペア:

[(1, 19967574), (2, 9983787), (3, 6655858), (6, 3327929), (11, 1815234), (22, 907617), (33, 605078), (41, 487014), (47, 424842), (66, 302539), (82, 243507), (94, 212421), (123, 162338), (141, 141614), (157, 127182), (246, 81169), (282, 70807), (314, 63591), (451, 44274), (471, 42394), (517, 38622), (902, 22137), (942, 21197), (1034, 19311), (1353, 14758), (1551, 12874), (1727, 11562), (1927, 10362), (2706, 7379), (3102, 6437), (3454, 5781), (3854, 5181)]