21075248

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{8081}}^1$

素因数の和:8252

約数の個数: 20

約数和(自身を含む): 41088888

約数和(自身を除く): 20013640

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 8081, 16162, 32324, 64648, 129296, 1317203, 2634406, 5268812, 10537624, 21075248]

約数ペア:

[(1, 21075248), (2, 10537624), (4, 5268812), (8, 2634406), (16, 1317203), (163, 129296), (326, 64648), (652, 32324), (1304, 16162), (2608, 8081)]