20004988

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{2699}}^1$

素因数の和:2829

約数の個数: 24

約数和(自身を含む): 37422000

約数和(自身を除く): 17417012

約数列:

[1, 2, 4, 17, 34, 68, 109, 218, 436, 1853, 2699, 3706, 5398, 7412, 10796, 45883, 91766, 183532, 294191, 588382, 1176764, 5001247, 10002494, 20004988]

約数ペア:

[(1, 20004988), (2, 10002494), (4, 5001247), (17, 1176764), (34, 588382), (68, 294191), (109, 183532), (218, 91766), (436, 45883), (1853, 10796), (2699, 7412), (3706, 5398)]