18814864

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1049}}^1$

素因数の和:1135

約数の個数: 40

約数和(自身を含む): 39060000

約数和(自身を除く): 20245136

約数列:

[1, 2, 4, 8, 16, 19, 38, 59, 76, 118, 152, 236, 304, 472, 944, 1049, 1121, 2098, 2242, 4196, 4484, 8392, 8968, 16784, 17936, 19931, 39862, 61891, 79724, 123782, 159448, 247564, 318896, 495128, 990256, 1175929, 2351858, 4703716, 9407432, 18814864]

約数ペア:

[(1, 18814864), (2, 9407432), (4, 4703716), (8, 2351858), (16, 1175929), (19, 990256), (38, 495128), (59, 318896), (76, 247564), (118, 159448), (152, 123782), (236, 79724), (304, 61891), (472, 39862), (944, 19931), (1049, 17936), (1121, 16784), (2098, 8968), (2242, 8392), (4196, 4484)]