21053204

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{74131}}^1$

素因数の和:74206

約数の個数: 12

約数和(自身を含む): 37362528

約数和(自身を除く): 16309324

約数列:

[1, 2, 4, 71, 142, 284, 74131, 148262, 296524, 5263301, 10526602, 21053204]

約数ペア:

[(1, 21053204), (2, 10526602), (4, 5263301), (71, 296524), (142, 148262), (284, 74131)]