20995877644

素因数分解:

$2^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{347}}^1\times {\mathrm{11939}}^1$

素因数の和:12478

約数の個数: 48

約数和(自身を含む): 42348983040

約数和(自身を除く): 21353105396

約数列:

[1, 2, 4, 7, 14, 28, 181, 347, 362, 694, 724, 1267, 1388, 2429, 2534, 4858, 5068, 9716, 11939, 23878, 47756, 62807, 83573, 125614, 167146, 251228, 334292, 439649, 879298, 1758596, 2160959, 4142833, 4321918, 8285666, 8643836, 15126713, 16571332, 28999831, 30253426, 57999662, 60506852, 115999324, 749852773, 1499705546, 2999411092, 5248969411, 10497938822, 20995877644]

約数ペア:

[(1, 20995877644), (2, 10497938822), (4, 5248969411), (7, 2999411092), (14, 1499705546), (28, 749852773), (181, 115999324), (347, 60506852), (362, 57999662), (694, 30253426), (724, 28999831), (1267, 16571332), (1388, 15126713), (2429, 8643836), (2534, 8285666), (4858, 4321918), (5068, 4142833), (9716, 2160959), (11939, 1758596), (23878, 879298), (47756, 439649), (62807, 334292), (83573, 251228), (125614, 167146)]