20121868

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{379}}^1\times {\mathrm{1021}}^1$

素因数の和:1417

約数の個数: 24

約数和(自身を含む): 38059280

約数和(自身を除く): 17937412

約数列:

[1, 2, 4, 13, 26, 52, 379, 758, 1021, 1516, 2042, 4084, 4927, 9854, 13273, 19708, 26546, 53092, 386959, 773918, 1547836, 5030467, 10060934, 20121868]

約数ペア:

[(1, 20121868), (2, 10060934), (4, 5030467), (13, 1547836), (26, 773918), (52, 386959), (379, 53092), (758, 26546), (1021, 19708), (1516, 13273), (2042, 9854), (4084, 4927)]