28387678

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{7129}}^1$

素因数の和:7323

約数の個数: 16

約数和(自身を含む): 46715760

約数和(自身を除く): 18328082

約数列:

[1, 2, 11, 22, 181, 362, 1991, 3982, 7129, 14258, 78419, 156838, 1290349, 2580698, 14193839, 28387678]

約数ペア:

[(1, 28387678), (2, 14193839), (11, 2580698), (22, 1290349), (181, 156838), (362, 78419), (1991, 14258), (3982, 7129)]