21621950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{379}}^1$

素因数の和:561

約数の個数: 48

約数和(自身を含む): 46366080

約数和(自身を除く): 24744130

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 163, 175, 326, 350, 379, 758, 815, 1141, 1630, 1895, 2282, 2653, 3790, 4075, 5306, 5705, 8150, 9475, 11410, 13265, 18950, 26530, 28525, 57050, 61777, 66325, 123554, 132650, 308885, 432439, 617770, 864878, 1544425, 2162195, 3088850, 4324390, 10810975, 21621950]

約数ペア:

[(1, 21621950), (2, 10810975), (5, 4324390), (7, 3088850), (10, 2162195), (14, 1544425), (25, 864878), (35, 617770), (50, 432439), (70, 308885), (163, 132650), (175, 123554), (326, 66325), (350, 61777), (379, 57050), (758, 28525), (815, 26530), (1141, 18950), (1630, 13265), (1895, 11410), (2282, 9475), (2653, 8150), (3790, 5705), (4075, 5306)]