20938045388

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{402654719}}^1$

素因数の和:402654736

約数の個数: 12

約数和(自身を含む): 39460162560

約数和(自身を除く): 18522117172

約数列:

[1, 2, 4, 13, 26, 52, 402654719, 805309438, 1610618876, 5234511347, 10469022694, 20938045388]

約数ペア:

[(1, 20938045388), (2, 10469022694), (4, 5234511347), (13, 1610618876), (26, 805309438), (52, 402654719)]