20212990077

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{522259}}^1$

素因数の和:522385

約数の個数: 32

約数和(自身を含む): 32756147200

約数和(自身を除く): 12543157123

約数列:

[1, 3, 7, 19, 21, 57, 97, 133, 291, 399, 679, 1843, 2037, 5529, 12901, 38703, 522259, 1566777, 3655813, 9922921, 10967439, 29768763, 50659123, 69460447, 151977369, 208381341, 354613861, 962523337, 1063841583, 2887570011, 6737663359, 20212990077]

約数ペア:

[(1, 20212990077), (3, 6737663359), (7, 2887570011), (19, 1063841583), (21, 962523337), (57, 354613861), (97, 208381341), (133, 151977369), (291, 69460447), (399, 50659123), (679, 29768763), (1843, 10967439), (2037, 9922921), (5529, 3655813), (12901, 1566777), (38703, 522259)]