620221959

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{74021}}^1$

素因数の和:74060

約数の個数: 36

約数和(自身を含む): 1097006040

約数和(自身を除く): 476784081

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 399, 441, 931, 1197, 2793, 8379, 74021, 222063, 518147, 666189, 1406399, 1554441, 3627029, 4219197, 4663323, 9844793, 10881087, 12657591, 29534379, 32643261, 68913551, 88603137, 206740653, 620221959]

約数ペア:

[(1, 620221959), (3, 206740653), (7, 88603137), (9, 68913551), (19, 32643261), (21, 29534379), (49, 12657591), (57, 10881087), (63, 9844793), (133, 4663323), (147, 4219197), (171, 3627029), (399, 1554441), (441, 1406399), (931, 666189), (1197, 518147), (2793, 222063), (8379, 74021)]