20212809507

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{263}}^1\times {\mathrm{7537}}^1$

素因数の和:7920

約数の個数: 48

約数和(自身を含む): 32286279168

約数和(自身を除く): 12073469661

約数列:

[1, 3, 9, 11, 33, 99, 103, 263, 309, 789, 927, 1133, 2367, 2893, 3399, 7537, 8679, 10197, 22611, 26037, 27089, 67833, 81267, 82907, 243801, 248721, 297979, 746163, 776311, 893937, 1982231, 2328933, 2681811, 5946693, 6986799, 8539421, 17840079, 21804541, 25618263, 65413623, 76854789, 196240869, 204169793, 612509379, 1837528137, 2245867723, 6737603169, 20212809507]

約数ペア:

[(1, 20212809507), (3, 6737603169), (9, 2245867723), (11, 1837528137), (33, 612509379), (99, 204169793), (103, 196240869), (263, 76854789), (309, 65413623), (789, 25618263), (927, 21804541), (1133, 17840079), (2367, 8539421), (2893, 6986799), (3399, 5946693), (7537, 2681811), (8679, 2328933), (10197, 1982231), (22611, 893937), (26037, 776311), (27089, 746163), (67833, 297979), (81267, 248721), (82907, 243801)]