21000643176

素因数分解:

$2^3\times 3^1\times {\mathrm{1709}}^1\times {\mathrm{512011}}^1$

素因数の和:513729

約数の個数: 32

約数和(自身を含む): 52532431200

約数和(自身を除く): 31531788024

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 1709, 3418, 5127, 6836, 10254, 13672, 20508, 41016, 512011, 1024022, 1536033, 2048044, 3072066, 4096088, 6144132, 12288264, 875026799, 1750053598, 2625080397, 3500107196, 5250160794, 7000214392, 10500321588, 21000643176]

約数ペア:

[(1, 21000643176), (2, 10500321588), (3, 7000214392), (4, 5250160794), (6, 3500107196), (8, 2625080397), (12, 1750053598), (24, 875026799), (1709, 12288264), (3418, 6144132), (5127, 4096088), (6836, 3072066), (10254, 2048044), (13672, 1536033), (20508, 1024022), (41016, 512011)]