20165759991

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{223}}^1\times {\mathrm{2141}}^1$

素因数の和:2421

約数の個数: 72

約数和(自身を含む): 33270846336

約数和(自身を除く): 13105086345

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 223, 247, 361, 669, 741, 1083, 2007, 2141, 2223, 2899, 3249, 4237, 4693, 6423, 8697, 12711, 14079, 19269, 26091, 27833, 38133, 40679, 42237, 55081, 80503, 83499, 122037, 165243, 241509, 250497, 366111, 477443, 495729, 528827, 724527, 772901, 1046539, 1432329, 1586481, 2318703, 3139617, 4296987, 4759443, 6206759, 6956109, 9071417, 9418851, 10047713, 18620277, 27214251, 30143139, 55860831, 81642753, 90429417, 117928421, 172356923, 353785263, 517070769, 1061355789, 1551212307, 2240639999, 6721919997, 20165759991]

約数ペア:

[(1, 20165759991), (3, 6721919997), (9, 2240639999), (13, 1551212307), (19, 1061355789), (39, 517070769), (57, 353785263), (117, 172356923), (171, 117928421), (223, 90429417), (247, 81642753), (361, 55860831), (669, 30143139), (741, 27214251), (1083, 18620277), (2007, 10047713), (2141, 9418851), (2223, 9071417), (2899, 6956109), (3249, 6206759), (4237, 4759443), (4693, 4296987), (6423, 3139617), (8697, 2318703), (12711, 1586481), (14079, 1432329), (19269, 1046539), (26091, 772901), (27833, 724527), (38133, 528827), (40679, 495729), (42237, 477443), (55081, 366111), (80503, 250497), (83499, 241509), (122037, 165243)]