19940804

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20183}}^1$

素因数の和:20219

約数の個数: 24

約数和(自身を含む): 39560640

約数和(自身を除く): 19619836

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 20183, 40366, 80732, 262379, 383477, 524758, 766954, 1049516, 1533908, 4985201, 9970402, 19940804]

約数ペア:

[(1, 19940804), (2, 9970402), (4, 4985201), (13, 1533908), (19, 1049516), (26, 766954), (38, 524758), (52, 383477), (76, 262379), (247, 80732), (494, 40366), (988, 20183)]