18018728

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{467}}^1$

素因数の和:546

約数の個数: 64

約数和(自身を含む): 42456960

約数和(自身を除く): 24438232

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 53, 56, 91, 104, 106, 182, 212, 364, 371, 424, 467, 689, 728, 742, 934, 1378, 1484, 1868, 2756, 2968, 3269, 3736, 4823, 5512, 6071, 6538, 9646, 12142, 13076, 19292, 24284, 24751, 26152, 38584, 42497, 48568, 49502, 84994, 99004, 169988, 173257, 198008, 321763, 339976, 346514, 643526, 693028, 1287052, 1386056, 2252341, 2574104, 4504682, 9009364, 18018728]

約数ペア:

[(1, 18018728), (2, 9009364), (4, 4504682), (7, 2574104), (8, 2252341), (13, 1386056), (14, 1287052), (26, 693028), (28, 643526), (52, 346514), (53, 339976), (56, 321763), (91, 198008), (104, 173257), (106, 169988), (182, 99004), (212, 84994), (364, 49502), (371, 48568), (424, 42497), (467, 38584), (689, 26152), (728, 24751), (742, 24284), (934, 19292), (1378, 13076), (1484, 12142), (1868, 9646), (2756, 6538), (2968, 6071), (3269, 5512), (3736, 4823)]