20542522

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:395

約数の個数: 64

約数和(自身を含む): 42835968

約数和(自身を除く): 22293446

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 31, 62, 77, 91, 143, 154, 182, 217, 286, 331, 341, 403, 434, 662, 682, 806, 1001, 2002, 2317, 2387, 2821, 3641, 4303, 4433, 4634, 4774, 5642, 7282, 8606, 8866, 10261, 20522, 25487, 30121, 31031, 47333, 50974, 60242, 62062, 71827, 94666, 112871, 133393, 143654, 225742, 266786, 331331, 662662, 790097, 933751, 1467323, 1580194, 1867502, 2934646, 10271261, 20542522]

約数ペア:

[(1, 20542522), (2, 10271261), (7, 2934646), (11, 1867502), (13, 1580194), (14, 1467323), (22, 933751), (26, 790097), (31, 662662), (62, 331331), (77, 266786), (91, 225742), (143, 143654), (154, 133393), (182, 112871), (217, 94666), (286, 71827), (331, 62062), (341, 60242), (403, 50974), (434, 47333), (662, 31031), (682, 30121), (806, 25487), (1001, 20522), (2002, 10261), (2317, 8866), (2387, 8606), (2821, 7282), (3641, 5642), (4303, 4774), (4433, 4634)]