21225760

素因数分解:

$2^5\times 5^1\times {\mathrm{132661}}^1$

素因数の和:132676

約数の個数: 24

約数和(自身を含む): 50146236

約数和(自身を除く): 28920476

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 132661, 265322, 530644, 663305, 1061288, 1326610, 2122576, 2653220, 4245152, 5306440, 10612880, 21225760]

約数ペア:

[(1, 21225760), (2, 10612880), (4, 5306440), (5, 4245152), (8, 2653220), (10, 2122576), (16, 1326610), (20, 1061288), (32, 663305), (40, 530644), (80, 265322), (160, 132661)]