16640247

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{1427}}^1$

素因数の和:1479

約数の個数: 24

約数和(自身を含む): 25087104

約数和(自身を除く): 8446857

約数列:

[1, 3, 13, 23, 39, 69, 169, 299, 507, 897, 1427, 3887, 4281, 11661, 18551, 32821, 55653, 98463, 241163, 426673, 723489, 1280019, 5546749, 16640247]

約数ペア:

[(1, 16640247), (3, 5546749), (13, 1280019), (23, 723489), (39, 426673), (69, 241163), (169, 98463), (299, 55653), (507, 32821), (897, 18551), (1427, 11661), (3887, 4281)]