21468070

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{12703}}^1$

素因数の和:12736

約数の個数: 24

約数和(自身を含む): 41846976

約数和(自身を除く): 20378906

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 12703, 25406, 63515, 127030, 165139, 330278, 825695, 1651390, 2146807, 4293614, 10734035, 21468070]

約数ペア:

[(1, 21468070), (2, 10734035), (5, 4293614), (10, 2146807), (13, 1651390), (26, 825695), (65, 330278), (130, 165139), (169, 127030), (338, 63515), (845, 25406), (1690, 12703)]