21243772

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{13049}}^1$

素因数の和:13101

約数の個数: 24

約数和(自身を含む): 41655600

約数和(自身を除く): 20411828

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1628, 13049, 26098, 52196, 143539, 287078, 482813, 574156, 965626, 1931252, 5310943, 10621886, 21243772]

約数ペア:

[(1, 21243772), (2, 10621886), (4, 5310943), (11, 1931252), (22, 965626), (37, 574156), (44, 482813), (74, 287078), (148, 143539), (407, 52196), (814, 26098), (1628, 13049)]