20403913684

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2136983}}^1$

素因数の和:2137036

約数の個数: 48

約数和(自身を含む): 45953703936

約数和(自身を除く): 25549790252

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 62, 77, 124, 154, 217, 308, 341, 434, 682, 868, 1364, 2387, 4774, 9548, 2136983, 4273966, 8547932, 14958881, 23506813, 29917762, 47013626, 59835524, 66246473, 94027252, 132492946, 164547691, 264985892, 329095382, 463725311, 658190764, 728711203, 927450622, 1457422406, 1854901244, 2914844812, 5100978421, 10201956842, 20403913684]

約数ペア:

[(1, 20403913684), (2, 10201956842), (4, 5100978421), (7, 2914844812), (11, 1854901244), (14, 1457422406), (22, 927450622), (28, 728711203), (31, 658190764), (44, 463725311), (62, 329095382), (77, 264985892), (124, 164547691), (154, 132492946), (217, 94027252), (308, 66246473), (341, 59835524), (434, 47013626), (682, 29917762), (868, 23506813), (1364, 14958881), (2387, 8547932), (4774, 4273966), (9548, 2136983)]