21101906

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{35053}}^1$

素因数の和:35105

約数の個数: 16

約数和(自身を含む): 37017024

約数和(自身を除く): 15915118

約数列:

[1, 2, 7, 14, 43, 86, 301, 602, 35053, 70106, 245371, 490742, 1507279, 3014558, 10550953, 21101906]

約数ペア:

[(1, 21101906), (2, 10550953), (7, 3014558), (14, 1507279), (43, 490742), (86, 245371), (301, 70106), (602, 35053)]