18281988

素因数分解:

$2^2\times 3^2\times {\mathrm{523}}^1\times {\mathrm{971}}^1$

素因数の和:1504

約数の個数: 36

約数和(自身を含む): 46348848

約数和(自身を除く): 28066860

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 523, 971, 1046, 1569, 1942, 2092, 2913, 3138, 3884, 4707, 5826, 6276, 8739, 9414, 11652, 17478, 18828, 34956, 507833, 1015666, 1523499, 2031332, 3046998, 4570497, 6093996, 9140994, 18281988]

約数ペア:

[(1, 18281988), (2, 9140994), (3, 6093996), (4, 4570497), (6, 3046998), (9, 2031332), (12, 1523499), (18, 1015666), (36, 507833), (523, 34956), (971, 18828), (1046, 17478), (1569, 11652), (1942, 9414), (2092, 8739), (2913, 6276), (3138, 5826), (3884, 4707)]