261570309

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{87103}}^1$

素因数の和:87137

約数の個数: 32

約数和(自身を含む): 468271104

約数和(自身を除く): 206700795

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 143, 231, 273, 429, 1001, 3003, 87103, 261309, 609721, 958133, 1132339, 1829163, 2874399, 3397017, 6706931, 7926373, 12455729, 20120793, 23779119, 37367187, 87190103, 261570309]

約数ペア:

[(1, 261570309), (3, 87190103), (7, 37367187), (11, 23779119), (13, 20120793), (21, 12455729), (33, 7926373), (39, 6706931), (77, 3397017), (91, 2874399), (143, 1829163), (231, 1132339), (273, 958133), (429, 609721), (1001, 261309), (3003, 87103)]