19988154

素因数分解:

$2^1\times 3^3\times {\mathrm{89}}^1\times {\mathrm{4159}}^1$

素因数の和:4259

約数の個数: 32

約数和(自身を含む): 44928000

約数和(自身を除く): 24939846

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 89, 178, 267, 534, 801, 1602, 2403, 4159, 4806, 8318, 12477, 24954, 37431, 74862, 112293, 224586, 370151, 740302, 1110453, 2220906, 3331359, 6662718, 9994077, 19988154]

約数ペア:

[(1, 19988154), (2, 9994077), (3, 6662718), (6, 3331359), (9, 2220906), (18, 1110453), (27, 740302), (54, 370151), (89, 224586), (178, 112293), (267, 74862), (534, 37431), (801, 24954), (1602, 12477), (2403, 8318), (4159, 4806)]