28078806

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{668543}}^1$

素因数の和:668555

約数の個数: 16

約数和(自身を含む): 64180224

約数和(自身を除く): 36101418

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 668543, 1337086, 2005629, 4011258, 4679801, 9359602, 14039403, 28078806]

約数ペア:

[(1, 28078806), (2, 14039403), (3, 9359602), (6, 4679801), (7, 4011258), (14, 2005629), (21, 1337086), (42, 668543)]