191909823

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{68711}}^1$

素因数の和:68747

約数の個数: 24

約数和(自身を含む): 313326720

約数和(自身を除く): 121416897

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 68711, 206133, 480977, 1305509, 1442931, 3366839, 3916527, 9138563, 10100517, 27415689, 63969941, 191909823]

約数ペア:

[(1, 191909823), (3, 63969941), (7, 27415689), (19, 10100517), (21, 9138563), (49, 3916527), (57, 3366839), (133, 1442931), (147, 1305509), (399, 480977), (931, 206133), (2793, 68711)]