28974267

素因数分解:

$3^4\times 7^1\times {\mathrm{137}}^1\times {\mathrm{373}}^1$

素因数の和:529

約数の個数: 40

約数和(自身を含む): 49960416

約数和(自身を除く): 20986149

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 137, 189, 373, 411, 567, 959, 1119, 1233, 2611, 2877, 3357, 3699, 7833, 8631, 10071, 11097, 23499, 25893, 30213, 51101, 70497, 77679, 153303, 211491, 357707, 459909, 1073121, 1379727, 3219363, 4139181, 9658089, 28974267]

約数ペア:

[(1, 28974267), (3, 9658089), (7, 4139181), (9, 3219363), (21, 1379727), (27, 1073121), (63, 459909), (81, 357707), (137, 211491), (189, 153303), (373, 77679), (411, 70497), (567, 51101), (959, 30213), (1119, 25893), (1233, 23499), (2611, 11097), (2877, 10071), (3357, 8631), (3699, 7833)]