20639685

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1867}}^1$

素因数の和:1953

約数の個数: 32

約数和(自身を含む): 36582912

約数和(自身を除く): 15943227

約数列:

[1, 3, 5, 11, 15, 33, 55, 67, 165, 201, 335, 737, 1005, 1867, 2211, 3685, 5601, 9335, 11055, 20537, 28005, 61611, 102685, 125089, 308055, 375267, 625445, 1375979, 1876335, 4127937, 6879895, 20639685]

約数ペア:

[(1, 20639685), (3, 6879895), (5, 4127937), (11, 1876335), (15, 1375979), (33, 625445), (55, 375267), (67, 308055), (165, 125089), (201, 102685), (335, 61611), (737, 28005), (1005, 20537), (1867, 11055), (2211, 9335), (3685, 5601)]