21880166

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{20297}}^1$

素因数の和:20324

約数の個数: 24

約数和(自身を含む): 41651496

約数和(自身を除く): 19771330

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 20297, 40594, 142079, 223267, 284158, 446534, 994553, 1562869, 1989106, 3125738, 10940083, 21880166]

約数ペア:

[(1, 21880166), (2, 10940083), (7, 3125738), (11, 1989106), (14, 1562869), (22, 994553), (49, 446534), (77, 284158), (98, 223267), (154, 142079), (539, 40594), (1078, 20297)]