19665009

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1847}}^1$

素因数の和:1886

約数の個数: 36

約数和(自身を含む): 35171136

約数和(自身を除く): 15506127

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 169, 273, 507, 819, 1183, 1521, 1847, 3549, 5541, 10647, 12929, 16623, 24011, 38787, 72033, 116361, 168077, 216099, 312143, 504231, 936429, 1512693, 2185001, 2809287, 6555003, 19665009]

約数ペア:

[(1, 19665009), (3, 6555003), (7, 2809287), (9, 2185001), (13, 1512693), (21, 936429), (39, 504231), (63, 312143), (91, 216099), (117, 168077), (169, 116361), (273, 72033), (507, 38787), (819, 24011), (1183, 16623), (1521, 12929), (1847, 10647), (3549, 5541)]