21538638

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{601}}^1$

素因数の和:801

約数の個数: 48

約数和(自身を含む): 51275952

約数和(自身を除く): 29737314

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 181, 198, 362, 543, 601, 1086, 1202, 1629, 1803, 1991, 3258, 3606, 3982, 5409, 5973, 6611, 10818, 11946, 13222, 17919, 19833, 35838, 39666, 59499, 108781, 118998, 217562, 326343, 652686, 979029, 1196591, 1958058, 2393182, 3589773, 7179546, 10769319, 21538638]

約数ペア:

[(1, 21538638), (2, 10769319), (3, 7179546), (6, 3589773), (9, 2393182), (11, 1958058), (18, 1196591), (22, 979029), (33, 652686), (66, 326343), (99, 217562), (181, 118998), (198, 108781), (362, 59499), (543, 39666), (601, 35838), (1086, 19833), (1202, 17919), (1629, 13222), (1803, 11946), (1991, 10818), (3258, 6611), (3606, 5973), (3982, 5409)]