20788790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{11117}}^1$

素因数の和:11152

約数の個数: 32

約数和(自身を含む): 43226784

約数和(自身を除く): 22437994

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 374, 935, 1870, 11117, 22234, 55585, 111170, 122287, 188989, 244574, 377978, 611435, 944945, 1222870, 1889890, 2078879, 4157758, 10394395, 20788790]

約数ペア:

[(1, 20788790), (2, 10394395), (5, 4157758), (10, 2078879), (11, 1889890), (17, 1222870), (22, 944945), (34, 611435), (55, 377978), (85, 244574), (110, 188989), (170, 122287), (187, 111170), (374, 55585), (935, 22234), (1870, 11117)]