21158416

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{13633}}^1$

素因数の和:13738

約数の個数: 20

約数和(自身を含む): 41420092

約数和(自身を除く): 20261676

約数列:

[1, 2, 4, 8, 16, 97, 194, 388, 776, 1552, 13633, 27266, 54532, 109064, 218128, 1322401, 2644802, 5289604, 10579208, 21158416]

約数ペア:

[(1, 21158416), (2, 10579208), (4, 5289604), (8, 2644802), (16, 1322401), (97, 218128), (194, 109064), (388, 54532), (776, 27266), (1552, 13633)]