19877872

素因数分解:

$2^4\times 7^1\times {\mathrm{177481}}^1$

素因数の和:177496

約数の個数: 20

約数和(自身を含む): 44015536

約数和(自身を除く): 24137664

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 177481, 354962, 709924, 1242367, 1419848, 2484734, 2839696, 4969468, 9938936, 19877872]

約数ペア:

[(1, 19877872), (2, 9938936), (4, 4969468), (7, 2839696), (8, 2484734), (14, 1419848), (16, 1242367), (28, 709924), (56, 354962), (112, 177481)]