21807184

素因数分解:

$2^4\times 7^1\times {\mathrm{194707}}^1$

素因数の和:194722

約数の個数: 20

約数和(自身を含む): 48287584

約数和(自身を除く): 26480400

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 194707, 389414, 778828, 1362949, 1557656, 2725898, 3115312, 5451796, 10903592, 21807184]

約数ペア:

[(1, 21807184), (2, 10903592), (4, 5451796), (7, 3115312), (8, 2725898), (14, 1557656), (16, 1362949), (28, 778828), (56, 389414), (112, 194707)]