71868279

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{641}}^1$

素因数の和:951

約数の個数: 32

約数和(自身を含む): 115868160

約数和(自身を除く): 43999881

約数列:

[1, 3, 7, 19, 21, 57, 133, 281, 399, 641, 843, 1923, 1967, 4487, 5339, 5901, 12179, 13461, 16017, 36537, 37373, 85253, 112119, 180121, 255759, 540363, 1260847, 3422299, 3782541, 10266897, 23956093, 71868279]

約数ペア:

[(1, 71868279), (3, 23956093), (7, 10266897), (19, 3782541), (21, 3422299), (57, 1260847), (133, 540363), (281, 255759), (399, 180121), (641, 112119), (843, 85253), (1923, 37373), (1967, 36537), (4487, 16017), (5339, 13461), (5901, 12179)]