21202588

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{617}}^1$

素因数の和:714

約数の個数: 36

約数和(自身を含む): 41425776

約数和(自身を除く): 20223188

約数列:

[1, 2, 4, 11, 22, 44, 71, 121, 142, 242, 284, 484, 617, 781, 1234, 1562, 2468, 3124, 6787, 8591, 13574, 17182, 27148, 34364, 43807, 74657, 87614, 149314, 175228, 298628, 481877, 963754, 1927508, 5300647, 10601294, 21202588]

約数ペア:

[(1, 21202588), (2, 10601294), (4, 5300647), (11, 1927508), (22, 963754), (44, 481877), (71, 298628), (121, 175228), (142, 149314), (242, 87614), (284, 74657), (484, 43807), (617, 34364), (781, 27148), (1234, 17182), (1562, 13574), (2468, 8591), (3124, 6787)]