19514495

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{557}}^1$

素因数の和:600

約数の個数: 48

約数和(自身を含む): 32060448

約数和(自身を除く): 12545953

約数列:

[1, 5, 7, 11, 13, 35, 49, 55, 65, 77, 91, 143, 245, 385, 455, 539, 557, 637, 715, 1001, 2695, 2785, 3185, 3899, 5005, 6127, 7007, 7241, 19495, 27293, 30635, 35035, 36205, 42889, 50687, 79651, 136465, 214445, 253435, 300223, 354809, 398255, 557557, 1501115, 1774045, 2787785, 3902899, 19514495]

約数ペア:

[(1, 19514495), (5, 3902899), (7, 2787785), (11, 1774045), (13, 1501115), (35, 557557), (49, 398255), (55, 354809), (65, 300223), (77, 253435), (91, 214445), (143, 136465), (245, 79651), (385, 50687), (455, 42889), (539, 36205), (557, 35035), (637, 30635), (715, 27293), (1001, 19495), (2695, 7241), (2785, 7007), (3185, 6127), (3899, 5005)]