19867055

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 27264384

約数和(自身を除く): 7397329

約数列:

[1, 5, 13, 23, 65, 97, 115, 137, 299, 485, 685, 1261, 1495, 1781, 2231, 3151, 6305, 8905, 11155, 13289, 15755, 29003, 40963, 66445, 145015, 172757, 204815, 305647, 863785, 1528235, 3973411, 19867055]

約数ペア:

[(1, 19867055), (5, 3973411), (13, 1528235), (23, 863785), (65, 305647), (97, 204815), (115, 172757), (137, 145015), (299, 66445), (485, 40963), (685, 29003), (1261, 15755), (1495, 13289), (1781, 11155), (2231, 8905), (3151, 6305)]