21681328

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{46727}}^1$

素因数の和:46764

約数の個数: 20

約数和(自身を含む): 43457040

約数和(自身を除く): 21775712

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 46727, 93454, 186908, 373816, 747632, 1355083, 2710166, 5420332, 10840664, 21681328]

約数ペア:

[(1, 21681328), (2, 10840664), (4, 5420332), (8, 2710166), (16, 1355083), (29, 747632), (58, 373816), (116, 186908), (232, 93454), (464, 46727)]