21832280

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{5101}}^1$

素因数の和:5219

約数の個数: 32

約数和(自身を含む): 49591440

約数和(自身を除く): 27759160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 5101, 10202, 20404, 25505, 40808, 51010, 102020, 204040, 545807, 1091614, 2183228, 2729035, 4366456, 5458070, 10916140, 21832280]

約数ペア:

[(1, 21832280), (2, 10916140), (4, 5458070), (5, 4366456), (8, 2729035), (10, 2183228), (20, 1091614), (40, 545807), (107, 204040), (214, 102020), (428, 51010), (535, 40808), (856, 25505), (1070, 20404), (2140, 10202), (4280, 5101)]