21609700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{30871}}^1$

素因数の和:30892

約数の個数: 36

約数和(自身を含む): 53593792

約数和(自身を除く): 31984092

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 30871, 61742, 123484, 154355, 216097, 308710, 432194, 617420, 771775, 864388, 1080485, 1543550, 2160970, 3087100, 4321940, 5402425, 10804850, 21609700]

約数ペア:

[(1, 21609700), (2, 10804850), (4, 5402425), (5, 4321940), (7, 3087100), (10, 2160970), (14, 1543550), (20, 1080485), (25, 864388), (28, 771775), (35, 617420), (50, 432194), (70, 308710), (100, 216097), (140, 154355), (175, 123484), (350, 61742), (700, 30871)]