19982524

素因数分解:

$2^2\times {\mathrm{71}}^2\times {\mathrm{991}}^1$

素因数の和:1137

約数の個数: 18

約数和(自身を含む): 35504672

約数和(自身を除く): 15522148

約数列:

[1, 2, 4, 71, 142, 284, 991, 1982, 3964, 5041, 10082, 20164, 70361, 140722, 281444, 4995631, 9991262, 19982524]

約数ペア:

[(1, 19982524), (2, 9991262), (4, 4995631), (71, 281444), (142, 140722), (284, 70361), (991, 20164), (1982, 10082), (3964, 5041)]