21670100

素因数分解:

$2^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{1559}}^1$

素因数の和:1712

約数の個数: 36

約数和(自身を含む): 47392800

約数和(自身を除く): 25722700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 139, 278, 556, 695, 1390, 1559, 2780, 3118, 3475, 6236, 6950, 7795, 13900, 15590, 31180, 38975, 77950, 155900, 216701, 433402, 866804, 1083505, 2167010, 4334020, 5417525, 10835050, 21670100]

約数ペア:

[(1, 21670100), (2, 10835050), (4, 5417525), (5, 4334020), (10, 2167010), (20, 1083505), (25, 866804), (50, 433402), (100, 216701), (139, 155900), (278, 77950), (556, 38975), (695, 31180), (1390, 15590), (1559, 13900), (2780, 7795), (3118, 6950), (3475, 6236)]