20688723

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1699}}^1$

素因数の和:1760

約数の個数: 32

約数和(自身を含む): 34272000

約数和(自身を除く): 13583277

約数列:

[1, 3, 9, 11, 27, 33, 41, 99, 123, 297, 369, 451, 1107, 1353, 1699, 4059, 5097, 12177, 15291, 18689, 45873, 56067, 69659, 168201, 208977, 504603, 626931, 766249, 1880793, 2298747, 6896241, 20688723]

約数ペア:

[(1, 20688723), (3, 6896241), (9, 2298747), (11, 1880793), (27, 766249), (33, 626931), (41, 504603), (99, 208977), (123, 168201), (297, 69659), (369, 56067), (451, 45873), (1107, 18689), (1353, 15291), (1699, 12177), (4059, 5097)]