19514937

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{631}}^1$

素因数の和:721

約数の個数: 24

約数和(自身を含む): 28682688

約数和(自身を除く): 9167751

約数列:

[1, 3, 13, 39, 61, 169, 183, 507, 631, 793, 1893, 2379, 8203, 10309, 24609, 30927, 38491, 106639, 115473, 319917, 500383, 1501149, 6504979, 19514937]

約数ペア:

[(1, 19514937), (3, 6504979), (13, 1501149), (39, 500383), (61, 319917), (169, 115473), (183, 106639), (507, 38491), (631, 30927), (793, 24609), (1893, 10309), (2379, 8203)]