20668252

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42703}}^1$

素因数の和:42729

約数の個数: 18

約数和(自身を含む): 39757424

約数和(自身を除く): 19089172

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42703, 85406, 170812, 469733, 939466, 1878932, 5167063, 10334126, 20668252]

約数ペア:

[(1, 20668252), (2, 10334126), (4, 5167063), (11, 1878932), (22, 939466), (44, 469733), (121, 170812), (242, 85406), (484, 42703)]