21918156

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1289}}^1$

素因数の和:1418

約数の個数: 48

約数和(自身を含む): 55624800

約数和(自身を除く): 33706644

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 109, 156, 218, 327, 436, 654, 1289, 1308, 1417, 2578, 2834, 3867, 4251, 5156, 5668, 7734, 8502, 15468, 16757, 17004, 33514, 50271, 67028, 100542, 140501, 201084, 281002, 421503, 562004, 843006, 1686012, 1826513, 3653026, 5479539, 7306052, 10959078, 21918156]

約数ペア:

[(1, 21918156), (2, 10959078), (3, 7306052), (4, 5479539), (6, 3653026), (12, 1826513), (13, 1686012), (26, 843006), (39, 562004), (52, 421503), (78, 281002), (109, 201084), (156, 140501), (218, 100542), (327, 67028), (436, 50271), (654, 33514), (1289, 17004), (1308, 16757), (1417, 15468), (2578, 8502), (2834, 7734), (3867, 5668), (4251, 5156)]