20989848

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^3$

素因数の和:149

約数の個数: 64

約数和(自身を含む): 58608000

約数和(自身を除く): 37618152

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 43, 44, 66, 86, 88, 129, 132, 172, 258, 264, 344, 473, 516, 946, 1032, 1419, 1849, 1892, 2838, 3698, 3784, 5547, 5676, 7396, 11094, 11352, 14792, 20339, 22188, 40678, 44376, 61017, 79507, 81356, 122034, 159014, 162712, 238521, 244068, 318028, 477042, 488136, 636056, 874577, 954084, 1749154, 1908168, 2623731, 3498308, 5247462, 6996616, 10494924, 20989848]

約数ペア:

[(1, 20989848), (2, 10494924), (3, 6996616), (4, 5247462), (6, 3498308), (8, 2623731), (11, 1908168), (12, 1749154), (22, 954084), (24, 874577), (33, 636056), (43, 488136), (44, 477042), (66, 318028), (86, 244068), (88, 238521), (129, 162712), (132, 159014), (172, 122034), (258, 81356), (264, 79507), (344, 61017), (473, 44376), (516, 40678), (946, 22188), (1032, 20339), (1419, 14792), (1849, 11352), (1892, 11094), (2838, 7396), (3698, 5676), (3784, 5547)]