18506319

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{271}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 28514304

約数和(自身を除く): 10007985

約数列:

[1, 3, 13, 17, 39, 51, 103, 221, 271, 309, 663, 813, 1339, 1751, 3523, 4017, 4607, 5253, 10569, 13821, 22763, 27913, 59891, 68289, 83739, 179673, 362869, 474521, 1088607, 1423563, 6168773, 18506319]

約数ペア:

[(1, 18506319), (3, 6168773), (13, 1423563), (17, 1088607), (39, 474521), (51, 362869), (103, 179673), (221, 83739), (271, 68289), (309, 59891), (663, 27913), (813, 22763), (1339, 13821), (1751, 10569), (3523, 5253), (4017, 4607)]