21684388

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{8353}}^1$

素因数の和:8427

約数の個数: 24

約数和(自身を含む): 42104160

約数和(自身を除く): 20419772

約数列:

[1, 2, 4, 11, 22, 44, 59, 118, 236, 649, 1298, 2596, 8353, 16706, 33412, 91883, 183766, 367532, 492827, 985654, 1971308, 5421097, 10842194, 21684388]

約数ペア:

[(1, 21684388), (2, 10842194), (4, 5421097), (11, 1971308), (22, 985654), (44, 492827), (59, 367532), (118, 183766), (236, 91883), (649, 33412), (1298, 16706), (2596, 8353)]