90771989

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{211}}^1$

素因数の和:417

約数の個数: 32

約数和(自身を含む): 117553152

約数和(自身を除く): 26781163

約数列:

[1, 7, 11, 37, 77, 151, 211, 259, 407, 1057, 1477, 1661, 2321, 2849, 5587, 7807, 11627, 16247, 31861, 39109, 54649, 61457, 85877, 223027, 350471, 430199, 601139, 1178857, 2453297, 8251999, 12967427, 90771989]

約数ペア:

[(1, 90771989), (7, 12967427), (11, 8251999), (37, 2453297), (77, 1178857), (151, 601139), (211, 430199), (259, 350471), (407, 223027), (1057, 85877), (1477, 61457), (1661, 54649), (2321, 39109), (2849, 31861), (5587, 16247), (7807, 11627)]