21396426

素因数分解:

$2^1\times 3^1\times {\mathrm{409}}^1\times {\mathrm{8719}}^1$

素因数の和:9133

約数の個数: 16

約数和(自身を含む): 42902400

約数和(自身を除く): 21505974

約数列:

[1, 2, 3, 6, 409, 818, 1227, 2454, 8719, 17438, 26157, 52314, 3566071, 7132142, 10698213, 21396426]

約数ペア:

[(1, 21396426), (2, 10698213), (3, 7132142), (6, 3566071), (409, 52314), (818, 26157), (1227, 17438), (2454, 8719)]