19477808

素因数分解:

$2^4\times 7^1\times {\mathrm{173909}}^1$

素因数の和:173924

約数の個数: 20

約数和(自身を含む): 43129680

約数和(自身を除く): 23651872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 173909, 347818, 695636, 1217363, 1391272, 2434726, 2782544, 4869452, 9738904, 19477808]

約数ペア:

[(1, 19477808), (2, 9738904), (4, 4869452), (7, 2782544), (8, 2434726), (14, 1391272), (16, 1217363), (28, 695636), (56, 347818), (112, 173909)]