20978412

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19211}}^1$

素因数の和:19238

約数の個数: 48

約数和(自身を含む): 60248832

約数和(自身を除く): 39270420

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 182, 273, 364, 546, 1092, 19211, 38422, 57633, 76844, 115266, 134477, 230532, 249743, 268954, 403431, 499486, 537908, 749229, 806862, 998972, 1498458, 1613724, 1748201, 2996916, 3496402, 5244603, 6992804, 10489206, 20978412]

約数ペア:

[(1, 20978412), (2, 10489206), (3, 6992804), (4, 5244603), (6, 3496402), (7, 2996916), (12, 1748201), (13, 1613724), (14, 1498458), (21, 998972), (26, 806862), (28, 749229), (39, 537908), (42, 499486), (52, 403431), (78, 268954), (84, 249743), (91, 230532), (156, 134477), (182, 115266), (273, 76844), (364, 57633), (546, 38422), (1092, 19211)]