28218465

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{523}}^1$

素因数の和:654

約数の個数: 48

約数和(自身を含む): 53951040

約数和(自身を除く): 25732575

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 109, 165, 327, 495, 523, 545, 981, 1199, 1569, 1635, 2615, 3597, 4707, 4905, 5753, 5995, 7845, 10791, 17259, 17985, 23535, 28765, 51777, 53955, 57007, 86295, 171021, 258885, 285035, 513063, 627077, 855105, 1881231, 2565315, 3135385, 5643693, 9406155, 28218465]

約数ペア:

[(1, 28218465), (3, 9406155), (5, 5643693), (9, 3135385), (11, 2565315), (15, 1881231), (33, 855105), (45, 627077), (55, 513063), (99, 285035), (109, 258885), (165, 171021), (327, 86295), (495, 57007), (523, 53955), (545, 51777), (981, 28765), (1199, 23535), (1569, 17985), (1635, 17259), (2615, 10791), (3597, 7845), (4707, 5995), (4905, 5753)]