18977084

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{21863}}^1$

素因数の和:21905

約数の個数: 24

約数和(自身を含む): 39180288

約数和(自身を除く): 20203204

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 21863, 43726, 87452, 153041, 306082, 612164, 677753, 1355506, 2711012, 4744271, 9488542, 18977084]

約数ペア:

[(1, 18977084), (2, 9488542), (4, 4744271), (7, 2711012), (14, 1355506), (28, 677753), (31, 612164), (62, 306082), (124, 153041), (217, 87452), (434, 43726), (868, 21863)]