71640378

素因数分解:

$2^1\times 3^2\times {\mathrm{1993}}^1\times {\mathrm{1997}}^1$

素因数の和:3998

約数の個数: 24

約数和(自身を含む): 155376468

約数和(自身を除く): 83736090

約数列:

[1, 2, 3, 6, 9, 18, 1993, 1997, 3986, 3994, 5979, 5991, 11958, 11982, 17937, 17973, 35874, 35946, 3980021, 7960042, 11940063, 23880126, 35820189, 71640378]

約数ペア:

[(1, 71640378), (2, 35820189), (3, 23880126), (6, 11940063), (9, 7960042), (18, 3980021), (1993, 35946), (1997, 35874), (3986, 17973), (3994, 17937), (5979, 11982), (5991, 11958)]