16918377

素因数分解:

$3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1621}}^1$

素因数の和:1709

約数の個数: 24

約数和(自身を含む): 26626752

約数和(自身を除く): 9708375

約数列:

[1, 3, 7, 21, 49, 71, 147, 213, 497, 1491, 1621, 3479, 4863, 10437, 11347, 34041, 79429, 115091, 238287, 345273, 805637, 2416911, 5639459, 16918377]

約数ペア:

[(1, 16918377), (3, 5639459), (7, 2416911), (21, 805637), (49, 345273), (71, 238287), (147, 115091), (213, 79429), (497, 34041), (1491, 11347), (1621, 10437), (3479, 4863)]