18947792

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{69661}}^1$

素因数の和:69686

約数の個数: 20

約数和(自身を含む): 38871396

約数和(自身を除く): 19923604

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 69661, 139322, 278644, 557288, 1114576, 1184237, 2368474, 4736948, 9473896, 18947792]

約数ペア:

[(1, 18947792), (2, 9473896), (4, 4736948), (8, 2368474), (16, 1184237), (17, 1114576), (34, 557288), (68, 278644), (136, 139322), (272, 69661)]