21000369736

素因数分解:

$2^3\times {\mathrm{1709}}^1\times {\mathrm{1536013}}^1$

素因数の和:1537728

約数の個数: 16

約数和(自身を含む): 39398759100

約数和(自身を除く): 18398389364

約数列:

[1, 2, 4, 8, 1709, 3418, 6836, 13672, 1536013, 3072026, 6144052, 12288104, 2625046217, 5250092434, 10500184868, 21000369736]

約数ペア:

[(1, 21000369736), (2, 10500184868), (4, 5250092434), (8, 2625046217), (1709, 12288104), (3418, 6144052), (6836, 3072026), (13672, 1536013)]