18989145

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2621}}^1$

素因数の和:2662

約数の個数: 48

約数和(自身を含む): 39267072

約数和(自身を除く): 20277927

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 35, 45, 63, 69, 105, 115, 161, 207, 315, 345, 483, 805, 1035, 1449, 2415, 2621, 7245, 7863, 13105, 18347, 23589, 39315, 55041, 60283, 91735, 117945, 165123, 180849, 275205, 301415, 421981, 542547, 825615, 904245, 1265943, 2109905, 2712735, 3797829, 6329715, 18989145]

約数ペア:

[(1, 18989145), (3, 6329715), (5, 3797829), (7, 2712735), (9, 2109905), (15, 1265943), (21, 904245), (23, 825615), (35, 542547), (45, 421981), (63, 301415), (69, 275205), (105, 180849), (115, 165123), (161, 117945), (207, 91735), (315, 60283), (345, 55041), (483, 39315), (805, 23589), (1035, 18347), (1449, 13105), (2415, 7863), (2621, 7245)]