199587731

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{283}}^1\times {\mathrm{389}}^1$

素因数の和:723

約数の個数: 24

約数和(自身を含む): 239906160

約数和(自身を除く): 40318429

約数列:

[1, 7, 37, 49, 259, 283, 389, 1813, 1981, 2723, 10471, 13867, 14393, 19061, 73297, 100751, 110087, 513079, 705257, 770609, 4073219, 5394263, 28512533, 199587731]

約数ペア:

[(1, 199587731), (7, 28512533), (37, 5394263), (49, 4073219), (259, 770609), (283, 705257), (389, 513079), (1813, 110087), (1981, 100751), (2723, 73297), (10471, 19061), (13867, 14393)]