21000578404

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{263}}^1\times {\mathrm{52951}}^1$

素因数の和:53260

約数の個数: 48

約数和(自身を含む): 41099224320

約数和(自身を除く): 20098645916

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 116, 263, 377, 526, 754, 1052, 1508, 3419, 6838, 7627, 13676, 15254, 30508, 52951, 99151, 105902, 198302, 211804, 396604, 688363, 1376726, 1535579, 2753452, 3071158, 6142316, 13926113, 19962527, 27852226, 39925054, 55704452, 79850108, 181039469, 362078938, 403857277, 724157876, 807714554, 1615429108, 5250144601, 10500289202, 21000578404]

約数ペア:

[(1, 21000578404), (2, 10500289202), (4, 5250144601), (13, 1615429108), (26, 807714554), (29, 724157876), (52, 403857277), (58, 362078938), (116, 181039469), (263, 79850108), (377, 55704452), (526, 39925054), (754, 27852226), (1052, 19962527), (1508, 13926113), (3419, 6142316), (6838, 3071158), (7627, 2753452), (13676, 1535579), (15254, 1376726), (30508, 688363), (52951, 396604), (99151, 211804), (105902, 198302)]