18945616

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{69653}}^1$

素因数の和:69678

約数の個数: 20

約数和(自身を含む): 38866932

約数和(自身を除く): 19921316

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 69653, 139306, 278612, 557224, 1114448, 1184101, 2368202, 4736404, 9472808, 18945616]

約数ペア:

[(1, 18945616), (2, 9472808), (4, 4736404), (8, 2368202), (16, 1184101), (17, 1114448), (34, 557224), (68, 278612), (136, 139306), (272, 69653)]