81393648

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{242243}}^1$

素因数の和:242261

約数の個数: 40

約数和(自身を含む): 240306048

約数和(自身を除く): 158912400

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 242243, 484486, 726729, 968972, 1453458, 1695701, 1937944, 2906916, 3391402, 3875888, 5087103, 5813832, 6782804, 10174206, 11627664, 13565608, 20348412, 27131216, 40696824, 81393648]

約数ペア:

[(1, 81393648), (2, 40696824), (3, 27131216), (4, 20348412), (6, 13565608), (7, 11627664), (8, 10174206), (12, 6782804), (14, 5813832), (16, 5087103), (21, 3875888), (24, 3391402), (28, 2906916), (42, 1937944), (48, 1695701), (56, 1453458), (84, 968972), (112, 726729), (168, 484486), (336, 242243)]