21298320704

素因数分解:

$2^6\times {\mathrm{263}}^1\times {\mathrm{1265347}}^1$

素因数の和:1265622

約数の個数: 28

約数和(自身を含む): 42424587744

約数和(自身を除く): 21126267040

約数列:

[1, 2, 4, 8, 16, 32, 64, 263, 526, 1052, 2104, 4208, 8416, 16832, 1265347, 2530694, 5061388, 10122776, 20245552, 40491104, 80982208, 332786261, 665572522, 1331145044, 2662290088, 5324580176, 10649160352, 21298320704]

約数ペア:

[(1, 21298320704), (2, 10649160352), (4, 5324580176), (8, 2662290088), (16, 1331145044), (32, 665572522), (64, 332786261), (263, 80982208), (526, 40491104), (1052, 20245552), (2104, 10122776), (4208, 5061388), (8416, 2530694), (16832, 1265347)]