20808211866

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{229}}^1\times {\mathrm{89611}}^1$

素因数の和:89871

約数の個数: 48

約数和(自身を含む): 45261228960

約数和(自身を除く): 24453017094

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 169, 229, 338, 458, 507, 687, 1014, 1374, 2977, 5954, 8931, 17862, 38701, 77402, 89611, 116103, 179222, 232206, 268833, 537666, 1164943, 2329886, 3494829, 6989658, 15144259, 20520919, 30288518, 41041838, 45432777, 61562757, 90865554, 123125514, 266771947, 533543894, 800315841, 1600631682, 3468035311, 6936070622, 10404105933, 20808211866]

約数ペア:

[(1, 20808211866), (2, 10404105933), (3, 6936070622), (6, 3468035311), (13, 1600631682), (26, 800315841), (39, 533543894), (78, 266771947), (169, 123125514), (229, 90865554), (338, 61562757), (458, 45432777), (507, 41041838), (687, 30288518), (1014, 20520919), (1374, 15144259), (2977, 6989658), (5954, 3494829), (8931, 2329886), (17862, 1164943), (38701, 537666), (77402, 268833), (89611, 232206), (116103, 179222)]