20779406

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:356

約数の個数: 32

約数和(自身を含む): 34471008

約数和(自身を除く): 13691602

約数列:

[1, 2, 17, 34, 43, 61, 86, 122, 233, 466, 731, 1037, 1462, 2074, 2623, 3961, 5246, 7922, 10019, 14213, 20038, 28426, 44591, 89182, 170323, 241621, 340646, 483242, 611159, 1222318, 10389703, 20779406]

約数ペア:

[(1, 20779406), (2, 10389703), (17, 1222318), (34, 611159), (43, 483242), (61, 340646), (86, 241621), (122, 170323), (233, 89182), (466, 44591), (731, 28426), (1037, 20038), (1462, 14213), (2074, 10019), (2623, 7922), (3961, 5246)]