20189931

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{8423}}^1$

素因数の和:8490

約数の個数: 16

約数和(自身を含む): 29113344

約数和(自身を除く): 8923413

約数列:

[1, 3, 17, 47, 51, 141, 799, 2397, 8423, 25269, 143191, 395881, 429573, 1187643, 6729977, 20189931]

約数ペア:

[(1, 20189931), (3, 6729977), (17, 1187643), (47, 429573), (51, 395881), (141, 143191), (799, 25269), (2397, 8423)]