18612405

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{367}}^1$

素因数の和:415

約数の個数: 72

約数和(自身を含む): 39267072

約数和(自身を除く): 20654667

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 35, 45, 49, 63, 69, 105, 115, 147, 161, 207, 245, 315, 345, 367, 441, 483, 735, 805, 1035, 1101, 1127, 1449, 1835, 2205, 2415, 2569, 3303, 3381, 5505, 5635, 7245, 7707, 8441, 10143, 12845, 16515, 16905, 17983, 23121, 25323, 38535, 42205, 50715, 53949, 59087, 75969, 89915, 115605, 126615, 161847, 177261, 269745, 295435, 379845, 413609, 531783, 809235, 886305, 1240827, 2068045, 2658915, 3722481, 6204135, 18612405]

約数ペア:

[(1, 18612405), (3, 6204135), (5, 3722481), (7, 2658915), (9, 2068045), (15, 1240827), (21, 886305), (23, 809235), (35, 531783), (45, 413609), (49, 379845), (63, 295435), (69, 269745), (105, 177261), (115, 161847), (147, 126615), (161, 115605), (207, 89915), (245, 75969), (315, 59087), (345, 53949), (367, 50715), (441, 42205), (483, 38535), (735, 25323), (805, 23121), (1035, 17983), (1101, 16905), (1127, 16515), (1449, 12845), (1835, 10143), (2205, 8441), (2415, 7707), (2569, 7245), (3303, 5635), (3381, 5505)]