28242137

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:509

約数の個数: 32

約数和(自身を含む): 37822464

約数和(自身を除く): 9580327

約数列:

[1, 7, 11, 23, 37, 77, 161, 253, 259, 407, 431, 851, 1771, 2849, 3017, 4741, 5957, 9361, 9913, 15947, 33187, 65527, 69391, 109043, 111629, 175417, 366781, 763301, 1227919, 2567467, 4034591, 28242137]

約数ペア:

[(1, 28242137), (7, 4034591), (11, 2567467), (23, 1227919), (37, 763301), (77, 366781), (161, 175417), (253, 111629), (259, 109043), (407, 69391), (431, 65527), (851, 33187), (1771, 15947), (2849, 9913), (3017, 9361), (4741, 5957)]