20199451779

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1\times {\mathrm{25741}}^1$

素因数の和:26132

約数の個数: 48

約数和(自身を含む): 33170111520

約数和(自身を除く): 12970659741

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 353, 741, 1059, 2223, 3177, 4589, 6707, 13767, 20121, 25741, 41301, 60363, 77223, 87191, 231669, 261573, 334633, 489079, 784719, 1003899, 1467237, 3011697, 4401711, 6358027, 9086573, 19074081, 27259719, 57222243, 81779157, 118125449, 172644887, 354376347, 517934661, 1063129041, 1553803983, 2244383531, 6733150593, 20199451779]

約数ペア:

[(1, 20199451779), (3, 6733150593), (9, 2244383531), (13, 1553803983), (19, 1063129041), (39, 517934661), (57, 354376347), (117, 172644887), (171, 118125449), (247, 81779157), (353, 57222243), (741, 27259719), (1059, 19074081), (2223, 9086573), (3177, 6358027), (4589, 4401711), (6707, 3011697), (13767, 1467237), (20121, 1003899), (25741, 784719), (41301, 489079), (60363, 334633), (77223, 261573), (87191, 231669)]