20784774

素因数分解:

$2^1\times 3^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{521}}^1$

素因数の和:696

約数の個数: 32

約数和(自身を含む): 42720480

約数和(自身を除く): 21935706

約数列:

[1, 2, 3, 6, 61, 109, 122, 183, 218, 327, 366, 521, 654, 1042, 1563, 3126, 6649, 13298, 19947, 31781, 39894, 56789, 63562, 95343, 113578, 170367, 190686, 340734, 3464129, 6928258, 10392387, 20784774]

約数ペア:

[(1, 20784774), (2, 10392387), (3, 6928258), (6, 3464129), (61, 340734), (109, 190686), (122, 170367), (183, 113578), (218, 95343), (327, 63562), (366, 56789), (521, 39894), (654, 31781), (1042, 19947), (1563, 13298), (3126, 6649)]