28278718

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{467}}^1$

素因数の和:636

約数の個数: 32

約数和(自身を含む): 48825504

約数和(自身を除く): 20546786

約数列:

[1, 2, 13, 17, 26, 34, 137, 221, 274, 442, 467, 934, 1781, 2329, 3562, 4658, 6071, 7939, 12142, 15878, 30277, 60554, 63979, 103207, 127958, 206414, 831727, 1087643, 1663454, 2175286, 14139359, 28278718]

約数ペア:

[(1, 28278718), (2, 14139359), (13, 2175286), (17, 1663454), (26, 1087643), (34, 831727), (137, 206414), (221, 127958), (274, 103207), (442, 63979), (467, 60554), (934, 30277), (1781, 15878), (2329, 12142), (3562, 7939), (4658, 6071)]