21148918

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{88861}}^1$

素因数の和:88887

約数の個数: 16

約数和(自身を含む): 38388384

約数和(自身を除く): 17239466

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 88861, 177722, 622027, 1244054, 1510637, 3021274, 10574459, 21148918]

約数ペア:

[(1, 21148918), (2, 10574459), (7, 3021274), (14, 1510637), (17, 1244054), (34, 622027), (119, 177722), (238, 88861)]