18786465

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^2$

素因数の和:179

約数の個数: 48

約数和(自身を含む): 34997760

約数和(自身を除く): 16211295

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 67, 93, 135, 155, 201, 279, 335, 465, 603, 837, 1005, 1395, 1809, 2077, 3015, 4185, 4489, 6231, 9045, 10385, 13467, 18693, 22445, 31155, 40401, 56079, 67335, 93465, 121203, 139159, 202005, 280395, 417477, 606015, 695795, 1252431, 2087385, 3757293, 6262155, 18786465]

約数ペア:

[(1, 18786465), (3, 6262155), (5, 3757293), (9, 2087385), (15, 1252431), (27, 695795), (31, 606015), (45, 417477), (67, 280395), (93, 202005), (135, 139159), (155, 121203), (201, 93465), (279, 67335), (335, 56079), (465, 40401), (603, 31155), (837, 22445), (1005, 18693), (1395, 13467), (1809, 10385), (2077, 9045), (3015, 6231), (4185, 4489)]