20365454

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{67}}^1\times {\mathrm{421}}^1$

素因数の和:528

約数の個数: 24

約数和(自身を含む): 32799528

約数和(自身を除く): 12434074

約数列:

[1, 2, 19, 38, 67, 134, 361, 421, 722, 842, 1273, 2546, 7999, 15998, 24187, 28207, 48374, 56414, 151981, 303962, 535933, 1071866, 10182727, 20365454]

約数ペア:

[(1, 20365454), (2, 10182727), (19, 1071866), (38, 535933), (67, 303962), (134, 151981), (361, 56414), (421, 48374), (722, 28207), (842, 24187), (1273, 15998), (2546, 7999)]