20289758

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{509}}^1\times {\mathrm{1049}}^1$

素因数の和:1579

約数の個数: 16

約数和(自身を含む): 32130000

約数和(自身を除く): 11840242

約数列:

[1, 2, 19, 38, 509, 1018, 1049, 2098, 9671, 19342, 19931, 39862, 533941, 1067882, 10144879, 20289758]

約数ペア:

[(1, 20289758), (2, 10144879), (19, 1067882), (38, 533941), (509, 39862), (1018, 19931), (1049, 19342), (2098, 9671)]