19985188

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{4457}}^1$

素因数の和:4539

約数の個数: 24

約数和(自身を含む): 37447200

約数和(自身を除く): 17462012

約数列:

[1, 2, 4, 19, 38, 59, 76, 118, 236, 1121, 2242, 4457, 4484, 8914, 17828, 84683, 169366, 262963, 338732, 525926, 1051852, 4996297, 9992594, 19985188]

約数ペア:

[(1, 19985188), (2, 9992594), (4, 4996297), (19, 1051852), (38, 525926), (59, 338732), (76, 262963), (118, 169366), (236, 84683), (1121, 17828), (2242, 8914), (4457, 4484)]