20988

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1$

素因数の和:74

約数の個数: 36

約数和(自身を含む): 58968

約数和(自身を除く): 37980

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 53, 66, 99, 106, 132, 159, 198, 212, 318, 396, 477, 583, 636, 954, 1166, 1749, 1908, 2332, 3498, 5247, 6996, 10494, 20988]

約数ペア:

[(1, 20988), (2, 10494), (3, 6996), (4, 5247), (6, 3498), (9, 2332), (11, 1908), (12, 1749), (18, 1166), (22, 954), (33, 636), (36, 583), (44, 477), (53, 396), (66, 318), (99, 212), (106, 198), (132, 159)]