20155199547

素因数分解:

$3^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{683}}^1\times {\mathrm{1949}}^1$

素因数の和:2752

約数の個数: 48

約数和(自身を含む): 31627065600

約数和(自身を除く): 11471866053

約数列:

[1, 3, 7, 21, 49, 103, 147, 309, 683, 721, 1949, 2049, 2163, 4781, 5047, 5847, 13643, 14343, 15141, 33467, 40929, 70349, 95501, 100401, 200747, 211047, 286503, 492443, 602241, 1331167, 1405229, 1477329, 3447101, 3993501, 4215687, 9318169, 9836603, 10341303, 27954507, 29509809, 65227183, 137110201, 195681549, 411330603, 959771407, 2879314221, 6718399849, 20155199547]

約数ペア:

[(1, 20155199547), (3, 6718399849), (7, 2879314221), (21, 959771407), (49, 411330603), (103, 195681549), (147, 137110201), (309, 65227183), (683, 29509809), (721, 27954507), (1949, 10341303), (2049, 9836603), (2163, 9318169), (4781, 4215687), (5047, 3993501), (5847, 3447101), (13643, 1477329), (14343, 1405229), (15141, 1331167), (33467, 602241), (40929, 492443), (70349, 286503), (95501, 211047), (100401, 200747)]