19218394

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{15727}}^1$

素因数の和:15789

約数の個数: 16

約数和(自身を含む): 31707648

約数和(自身を除く): 12489254

約数列:

[1, 2, 13, 26, 47, 94, 611, 1222, 15727, 31454, 204451, 408902, 739169, 1478338, 9609197, 19218394]

約数ペア:

[(1, 19218394), (2, 9609197), (13, 1478338), (26, 739169), (47, 408902), (94, 204451), (611, 31454), (1222, 15727)]