42390621

素因数分解:

$3^8\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:115

約数の個数: 72

約数和(自身を含む): 79357824

約数和(自身を除く): 36967203

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 71, 81, 91, 117, 189, 213, 243, 273, 351, 497, 567, 639, 729, 819, 923, 1053, 1491, 1701, 1917, 2187, 2457, 2769, 3159, 4473, 5103, 5751, 6461, 6561, 7371, 8307, 9477, 13419, 15309, 17253, 19383, 22113, 24921, 28431, 40257, 45927, 51759, 58149, 66339, 74763, 85293, 120771, 155277, 174447, 199017, 224289, 362313, 465831, 523341, 597051, 672867, 1086939, 1570023, 2018601, 3260817, 4710069, 6055803, 14130207, 42390621]

約数ペア:

[(1, 42390621), (3, 14130207), (7, 6055803), (9, 4710069), (13, 3260817), (21, 2018601), (27, 1570023), (39, 1086939), (63, 672867), (71, 597051), (81, 523341), (91, 465831), (117, 362313), (189, 224289), (213, 199017), (243, 174447), (273, 155277), (351, 120771), (497, 85293), (567, 74763), (639, 66339), (729, 58149), (819, 51759), (923, 45927), (1053, 40257), (1491, 28431), (1701, 24921), (1917, 22113), (2187, 19383), (2457, 17253), (2769, 15309), (3159, 13419), (4473, 9477), (5103, 8307), (5751, 7371), (6461, 6561)]