20131659

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:261

約数の個数: 40

約数和(自身を含む): 32215040

約数和(自身を除く): 12083381

約数列:

[1, 3, 9, 19, 27, 57, 81, 103, 127, 171, 309, 381, 513, 927, 1143, 1539, 1957, 2413, 2781, 3429, 5871, 7239, 8343, 10287, 13081, 17613, 21717, 39243, 52839, 65151, 117729, 158517, 195453, 248539, 353187, 745617, 1059561, 2236851, 6710553, 20131659]

約数ペア:

[(1, 20131659), (3, 6710553), (9, 2236851), (19, 1059561), (27, 745617), (57, 353187), (81, 248539), (103, 195453), (127, 158517), (171, 117729), (309, 65151), (381, 52839), (513, 39243), (927, 21717), (1143, 17613), (1539, 13081), (1957, 10287), (2413, 8343), (2781, 7239), (3429, 5871)]