21690050

素因数分解:

$2^1\times 5^2\times {\mathrm{461}}^1\times {\mathrm{941}}^1$

素因数の和:1414

約数の個数: 24

約数和(自身を含む): 40473972

約数和(自身を除く): 18783922

約数列:

[1, 2, 5, 10, 25, 50, 461, 922, 941, 1882, 2305, 4610, 4705, 9410, 11525, 23050, 23525, 47050, 433801, 867602, 2169005, 4338010, 10845025, 21690050]

約数ペア:

[(1, 21690050), (2, 10845025), (5, 4338010), (10, 2169005), (25, 867602), (50, 433801), (461, 47050), (922, 23525), (941, 23050), (1882, 11525), (2305, 9410), (4610, 4705)]