39721518

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{31081}}^1$

素因数の和:31160

約数の個数: 24

約数和(自身を含む): 87278256

約数和(自身を除く): 47556738

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 31081, 62162, 93243, 186486, 279729, 559458, 2206751, 4413502, 6620253, 13240506, 19860759, 39721518]

約数ペア:

[(1, 39721518), (2, 19860759), (3, 13240506), (6, 6620253), (9, 4413502), (18, 2206751), (71, 559458), (142, 279729), (213, 186486), (426, 93243), (639, 62162), (1278, 31081)]