20990932

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{181}}^1\times {\mathrm{367}}^1$

素因数の和:631

約数の個数: 24

約数和(自身を含む): 37506560

約数和(自身を除く): 16515628

約数列:

[1, 2, 4, 79, 158, 181, 316, 362, 367, 724, 734, 1468, 14299, 28598, 28993, 57196, 57986, 66427, 115972, 132854, 265708, 5247733, 10495466, 20990932]

約数ペア:

[(1, 20990932), (2, 10495466), (4, 5247733), (79, 265708), (158, 132854), (181, 115972), (316, 66427), (362, 57986), (367, 57196), (724, 28993), (734, 28598), (1468, 14299)]