19512717

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{569}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 12006003

約数列:

[1, 3, 7, 21, 23, 69, 71, 161, 213, 483, 497, 569, 1491, 1633, 1707, 3983, 4899, 11431, 11949, 13087, 34293, 39261, 40399, 91609, 121197, 274827, 282793, 848379, 929177, 2787531, 6504239, 19512717]

約数ペア:

[(1, 19512717), (3, 6504239), (7, 2787531), (21, 929177), (23, 848379), (69, 282793), (71, 274827), (161, 121197), (213, 91609), (483, 40399), (497, 39261), (569, 34293), (1491, 13087), (1633, 11949), (1707, 11431), (3983, 4899)]