20791103487

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{887}}^1\times {\mathrm{3499}}^1$

素因数の和:4436

約数の個数: 64

約数和(自身を含む): 35804160000

約数和(自身を除く): 15013056513

約数列:

[1, 3, 7, 11, 21, 29, 33, 77, 87, 203, 231, 319, 609, 887, 957, 2233, 2661, 3499, 6209, 6699, 9757, 10497, 18627, 24493, 25723, 29271, 38489, 68299, 73479, 77169, 101471, 115467, 180061, 204897, 269423, 282953, 304413, 540183, 710297, 808269, 848859, 1116181, 1980671, 2130891, 3103613, 3348543, 5942013, 7813267, 9310839, 21725291, 23439801, 34139743, 65175873, 90004777, 102419229, 238978201, 270014331, 630033439, 716934603, 990052547, 1890100317, 2970157641, 6930367829, 20791103487]

約数ペア:

[(1, 20791103487), (3, 6930367829), (7, 2970157641), (11, 1890100317), (21, 990052547), (29, 716934603), (33, 630033439), (77, 270014331), (87, 238978201), (203, 102419229), (231, 90004777), (319, 65175873), (609, 34139743), (887, 23439801), (957, 21725291), (2233, 9310839), (2661, 7813267), (3499, 5942013), (6209, 3348543), (6699, 3103613), (9757, 2130891), (10497, 1980671), (18627, 1116181), (24493, 848859), (25723, 808269), (29271, 710297), (38489, 540183), (68299, 304413), (73479, 282953), (77169, 269423), (101471, 204897), (115467, 180061)]