19860128

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{21401}}^1$

素因数の和:21440

約数の個数: 24

約数和(自身を含む): 40449780

約数和(自身を除く): 20589652

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 116, 232, 464, 928, 21401, 42802, 85604, 171208, 342416, 620629, 684832, 1241258, 2482516, 4965032, 9930064, 19860128]

約数ペア:

[(1, 19860128), (2, 9930064), (4, 4965032), (8, 2482516), (16, 1241258), (29, 684832), (32, 620629), (58, 342416), (116, 171208), (232, 85604), (464, 42802), (928, 21401)]