78221913

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19919}}^1$

素因数の和:19957

約数の個数: 32

約数和(自身を含む): 137687040

約数和(自身を除く): 59465127

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 77, 119, 187, 231, 357, 561, 1309, 3927, 19919, 59757, 139433, 219109, 338623, 418299, 657327, 1015869, 1533763, 2370361, 3724853, 4601289, 7111083, 11174559, 26073971, 78221913]

約数ペア:

[(1, 78221913), (3, 26073971), (7, 11174559), (11, 7111083), (17, 4601289), (21, 3724853), (33, 2370361), (51, 1533763), (77, 1015869), (119, 657327), (187, 418299), (231, 338623), (357, 219109), (561, 139433), (1309, 59757), (3927, 19919)]