21287434

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89443}}^1$

素因数の和:89469

約数の個数: 16

約数和(自身を含む): 38639808

約数和(自身を除く): 17352374

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 89443, 178886, 626101, 1252202, 1520531, 3041062, 10643717, 21287434]

約数ペア:

[(1, 21287434), (2, 10643717), (7, 3041062), (14, 1520531), (17, 1252202), (34, 626101), (119, 178886), (238, 89443)]