28104363

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{443}}^1$

素因数の和:528

約数の個数: 48

約数和(自身を含む): 49870080

約数和(自身を除く): 21765717

約数列:

[1, 3, 7, 9, 19, 21, 53, 57, 63, 133, 159, 171, 371, 399, 443, 477, 1007, 1113, 1197, 1329, 3021, 3101, 3339, 3987, 7049, 8417, 9063, 9303, 21147, 23479, 25251, 27909, 58919, 63441, 70437, 75753, 164353, 176757, 211311, 446101, 493059, 530271, 1338303, 1479177, 3122707, 4014909, 9368121, 28104363]

約数ペア:

[(1, 28104363), (3, 9368121), (7, 4014909), (9, 3122707), (19, 1479177), (21, 1338303), (53, 530271), (57, 493059), (63, 446101), (133, 211311), (159, 176757), (171, 164353), (371, 75753), (399, 70437), (443, 63441), (477, 58919), (1007, 27909), (1113, 25251), (1197, 23479), (1329, 21147), (3021, 9303), (3101, 9063), (3339, 8417), (3987, 7049)]