20530972

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{349}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 45158400

約数和(自身を除く): 24627428

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 191, 308, 349, 382, 698, 764, 1337, 1396, 2101, 2443, 2674, 3839, 4202, 4886, 5348, 7678, 8404, 9772, 14707, 15356, 26873, 29414, 53746, 58828, 66659, 107492, 133318, 266636, 466613, 733249, 933226, 1466498, 1866452, 2932996, 5132743, 10265486, 20530972]

約数ペア:

[(1, 20530972), (2, 10265486), (4, 5132743), (7, 2932996), (11, 1866452), (14, 1466498), (22, 933226), (28, 733249), (44, 466613), (77, 266636), (154, 133318), (191, 107492), (308, 66659), (349, 58828), (382, 53746), (698, 29414), (764, 26873), (1337, 15356), (1396, 14707), (2101, 9772), (2443, 8404), (2674, 7678), (3839, 5348), (4202, 4886)]