20121772

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{1997}}^1$

素因数の和:2241

約数の個数: 24

約数和(自身を含む): 38601360

約数和(自身を除く): 18479588

約数列:

[1, 2, 4, 11, 22, 44, 229, 458, 916, 1997, 2519, 3994, 5038, 7988, 10076, 21967, 43934, 87868, 457313, 914626, 1829252, 5030443, 10060886, 20121772]

約数ペア:

[(1, 20121772), (2, 10060886), (4, 5030443), (11, 1829252), (22, 914626), (44, 457313), (229, 87868), (458, 43934), (916, 21967), (1997, 10076), (2519, 7988), (3994, 5038)]