21194355

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15527}}^1$

素因数の和:15555

約数の個数: 32

約数和(自身を含む): 41739264

約数和(自身を除く): 20544909

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 15527, 46581, 77635, 108689, 201851, 232905, 326067, 543445, 605553, 1009255, 1412957, 1630335, 3027765, 4238871, 7064785, 21194355]

約数ペア:

[(1, 21194355), (3, 7064785), (5, 4238871), (7, 3027765), (13, 1630335), (15, 1412957), (21, 1009255), (35, 605553), (39, 543445), (65, 326067), (91, 232905), (105, 201851), (195, 108689), (273, 77635), (455, 46581), (1365, 15527)]