18887804

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{11717}}^1$

素因数の和:11765

約数の個数: 24

約数和(自身を含む): 36747648

約数和(自身を除く): 17859844

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 11717, 23434, 46868, 152321, 304642, 363227, 609284, 726454, 1452908, 4721951, 9443902, 18887804]

約数ペア:

[(1, 18887804), (2, 9443902), (4, 4721951), (13, 1452908), (26, 726454), (31, 609284), (52, 363227), (62, 304642), (124, 152321), (403, 46868), (806, 23434), (1612, 11717)]