21906766

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{22039}}^1$

素因数の和:22119

約数の個数: 16

約数和(自身を含む): 38085120

約数和(自身を除く): 16178354

約数列:

[1, 2, 7, 14, 71, 142, 497, 994, 22039, 44078, 154273, 308546, 1564769, 3129538, 10953383, 21906766]

約数ペア:

[(1, 21906766), (2, 10953383), (7, 3129538), (14, 1564769), (71, 308546), (142, 154273), (497, 44078), (994, 22039)]