397917

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1$

素因数の和:217

約数の個数: 24

約数和(自身を含む): 655200

約数和(自身を除く): 257283

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 179, 247, 537, 741, 1611, 2223, 2327, 3401, 6981, 10203, 20943, 30609, 44213, 132639, 397917]

約数ペア:

[(1, 397917), (3, 132639), (9, 44213), (13, 30609), (19, 20943), (39, 10203), (57, 6981), (117, 3401), (171, 2327), (179, 2223), (247, 1611), (537, 741)]