20357379

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5669}}^1$

素因数の和:5704

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 15930621

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 171, 189, 399, 513, 1197, 3591, 5669, 17007, 39683, 51021, 107711, 119049, 153063, 323133, 357147, 753977, 969399, 1071441, 2261931, 2908197, 6785793, 20357379]

約数ペア:

[(1, 20357379), (3, 6785793), (7, 2908197), (9, 2261931), (19, 1071441), (21, 969399), (27, 753977), (57, 357147), (63, 323133), (133, 153063), (171, 119049), (189, 107711), (399, 51021), (513, 39683), (1197, 17007), (3591, 5669)]