19706830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{13781}}^1$

素因数の和:13812

約数の個数: 32

約数和(自身を含む): 41676768

約数和(自身を除く): 21969938

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 13781, 27562, 68905, 137810, 151591, 179153, 303182, 358306, 757955, 895765, 1515910, 1791530, 1970683, 3941366, 9853415, 19706830]

約数ペア:

[(1, 19706830), (2, 9853415), (5, 3941366), (10, 1970683), (11, 1791530), (13, 1515910), (22, 895765), (26, 757955), (55, 358306), (65, 303182), (110, 179153), (130, 151591), (143, 137810), (286, 68905), (715, 27562), (1430, 13781)]