259715428

素因数分解:

$2^2\times 7^1\times {\mathrm{431}}^1\times {\mathrm{21521}}^1$

素因数の和:21963

約数の個数: 24

約数和(自身を含む): 520660224

約数和(自身を除く): 260944796

約数列:

[1, 2, 4, 7, 14, 28, 431, 862, 1724, 3017, 6034, 12068, 21521, 43042, 86084, 150647, 301294, 602588, 9275551, 18551102, 37102204, 64928857, 129857714, 259715428]

約数ペア:

[(1, 259715428), (2, 129857714), (4, 64928857), (7, 37102204), (14, 18551102), (28, 9275551), (431, 602588), (862, 301294), (1724, 150647), (3017, 86084), (6034, 43042), (12068, 21521)]