638963772

素因数分解:

$2^2\times 3^1\times {\mathrm{1993}}^1\times {\mathrm{26717}}^1$

素因数の和:28717

約数の個数: 24

約数和(自身を含む): 1491719376

約数和(自身を除く): 852755604

約数列:

[1, 2, 3, 4, 6, 12, 1993, 3986, 5979, 7972, 11958, 23916, 26717, 53434, 80151, 106868, 160302, 320604, 53246981, 106493962, 159740943, 212987924, 319481886, 638963772]

約数ペア:

[(1, 638963772), (2, 319481886), (3, 212987924), (4, 159740943), (6, 106493962), (12, 53246981), (1993, 320604), (3986, 160302), (5979, 106868), (7972, 80151), (11958, 53434), (23916, 26717)]