20851070

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{31121}}^1$

素因数の和:31195

約数の個数: 16

約数和(自身を含む): 38093328

約数和(自身を除く): 17242258

約数列:

[1, 2, 5, 10, 67, 134, 335, 670, 31121, 62242, 155605, 311210, 2085107, 4170214, 10425535, 20851070]

約数ペア:

[(1, 20851070), (2, 10425535), (5, 4170214), (10, 2085107), (67, 311210), (134, 155605), (335, 62242), (670, 31121)]