19729808

素因数分解:

$2^4\times 7^1\times {\mathrm{176159}}^1$

素因数の和:176174

約数の個数: 20

約数和(自身を含む): 43687680

約数和(自身を除く): 23957872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 176159, 352318, 704636, 1233113, 1409272, 2466226, 2818544, 4932452, 9864904, 19729808]

約数ペア:

[(1, 19729808), (2, 9864904), (4, 4932452), (7, 2818544), (8, 2466226), (14, 1409272), (16, 1233113), (28, 704636), (56, 352318), (112, 176159)]