21780453656

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{159503}}^1$

素因数の和:159636

約数の個数: 48

約数和(自身を含む): 44659524960

約数和(自身を除く): 22879071304

約数列:

[1, 2, 4, 8, 13, 26, 52, 101, 104, 169, 202, 338, 404, 676, 808, 1313, 1352, 2626, 5252, 10504, 17069, 34138, 68276, 136552, 159503, 319006, 638012, 1276024, 2073539, 4147078, 8294156, 16109803, 16588312, 26956007, 32219606, 53912014, 64439212, 107824028, 128878424, 209427439, 215648056, 418854878, 837709756, 1675419512, 2722556707, 5445113414, 10890226828, 21780453656]

約数ペア:

[(1, 21780453656), (2, 10890226828), (4, 5445113414), (8, 2722556707), (13, 1675419512), (26, 837709756), (52, 418854878), (101, 215648056), (104, 209427439), (169, 128878424), (202, 107824028), (338, 64439212), (404, 53912014), (676, 32219606), (808, 26956007), (1313, 16588312), (1352, 16109803), (2626, 8294156), (5252, 4147078), (10504, 2073539), (17069, 1276024), (34138, 638012), (68276, 319006), (136552, 159503)]