21065170

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{300931}}^1$

素因数の和:300945

約数の個数: 16

約数和(自身を含む): 43334208

約数和(自身を除く): 22269038

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 300931, 601862, 1504655, 2106517, 3009310, 4213034, 10532585, 21065170]

約数ペア:

[(1, 21065170), (2, 10532585), (5, 4213034), (7, 3009310), (10, 2106517), (14, 1504655), (35, 601862), (70, 300931)]