21689222

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{8039}}^1$

素因数の和:8131

約数の個数: 16

約数和(自身を含む): 34732800

約数和(自身を除く): 13043578

約数列:

[1, 2, 19, 38, 71, 142, 1349, 2698, 8039, 16078, 152741, 305482, 570769, 1141538, 10844611, 21689222]

約数ペア:

[(1, 21689222), (2, 10844611), (19, 1141538), (38, 570769), (71, 305482), (142, 152741), (1349, 16078), (2698, 8039)]