9988979

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{587}}^1$

素因数の和:635

約数の個数: 32

約数和(自身を含む): 14224896

約数和(自身を除く): 4235917

約数列:

[1, 7, 11, 13, 17, 77, 91, 119, 143, 187, 221, 587, 1001, 1309, 1547, 2431, 4109, 6457, 7631, 9979, 17017, 45199, 53417, 69853, 83941, 109769, 129727, 587587, 768383, 908089, 1426997, 9988979]

約数ペア:

[(1, 9988979), (7, 1426997), (11, 908089), (13, 768383), (17, 587587), (77, 129727), (91, 109769), (119, 83941), (143, 69853), (187, 53417), (221, 45199), (587, 17017), (1001, 9979), (1309, 7631), (1547, 6457), (2431, 4109)]