21386236

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{181}}^1\times {\mathrm{271}}^1$

素因数の和:565

約数の個数: 24

約数和(自身を含む): 38118080

約数和(自身を除く): 16731844

約数列:

[1, 2, 4, 109, 181, 218, 271, 362, 436, 542, 724, 1084, 19729, 29539, 39458, 49051, 59078, 78916, 98102, 118156, 196204, 5346559, 10693118, 21386236]

約数ペア:

[(1, 21386236), (2, 10693118), (4, 5346559), (109, 196204), (181, 118156), (218, 98102), (271, 78916), (362, 59078), (436, 49051), (542, 39458), (724, 29539), (1084, 19729)]