28199913

素因数分解:

$3^1\times 7^1\times {\mathrm{367}}^1\times {\mathrm{3659}}^1$

素因数の和:4036

約数の個数: 16

約数和(自身を含む): 43100160

約数和(自身を除く): 14900247

約数列:

[1, 3, 7, 21, 367, 1101, 2569, 3659, 7707, 10977, 25613, 76839, 1342853, 4028559, 9399971, 28199913]

約数ペア:

[(1, 28199913), (3, 9399971), (7, 4028559), (21, 1342853), (367, 76839), (1101, 25613), (2569, 10977), (3659, 7707)]