18387495

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{269}}^1$

素因数の和:325

約数の個数: 72

約数和(自身を含む): 38413440

約数和(自身を除く): 20025945

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 49, 63, 93, 105, 147, 155, 217, 245, 269, 279, 315, 441, 465, 651, 735, 807, 1085, 1345, 1395, 1519, 1883, 1953, 2205, 2421, 3255, 4035, 4557, 5649, 7595, 8339, 9415, 9765, 12105, 13181, 13671, 16947, 22785, 25017, 28245, 39543, 41695, 58373, 65905, 68355, 75051, 84735, 118629, 125085, 175119, 197715, 291865, 375255, 408611, 525357, 593145, 875595, 1225833, 2043055, 2626785, 3677499, 6129165, 18387495]

約数ペア:

[(1, 18387495), (3, 6129165), (5, 3677499), (7, 2626785), (9, 2043055), (15, 1225833), (21, 875595), (31, 593145), (35, 525357), (45, 408611), (49, 375255), (63, 291865), (93, 197715), (105, 175119), (147, 125085), (155, 118629), (217, 84735), (245, 75051), (269, 68355), (279, 65905), (315, 58373), (441, 41695), (465, 39543), (651, 28245), (735, 25017), (807, 22785), (1085, 16947), (1345, 13671), (1395, 13181), (1519, 12105), (1883, 9765), (1953, 9415), (2205, 8339), (2421, 7595), (3255, 5649), (4035, 4557)]