20171331

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{659}}^1$

素因数の和:863

約数の個数: 24

約数和(自身を含む): 30888000

約数和(自身を除く): 10716669

約数列:

[1, 3, 9, 19, 57, 171, 179, 537, 659, 1611, 1977, 3401, 5931, 10203, 12521, 30609, 37563, 112689, 117961, 353883, 1061649, 2241259, 6723777, 20171331]

約数ペア:

[(1, 20171331), (3, 6723777), (9, 2241259), (19, 1061649), (57, 353883), (171, 117961), (179, 112689), (537, 37563), (659, 30609), (1611, 12521), (1977, 10203), (3401, 5931)]