21888018

素因数分解:

$2^1\times 3^2\times {\mathrm{509}}^1\times {\mathrm{2389}}^1$

素因数の和:2906

約数の個数: 24

約数和(自身を含む): 47537100

約数和(自身を除く): 25649082

約数列:

[1, 2, 3, 6, 9, 18, 509, 1018, 1527, 2389, 3054, 4581, 4778, 7167, 9162, 14334, 21501, 43002, 1216001, 2432002, 3648003, 7296006, 10944009, 21888018]

約数ペア:

[(1, 21888018), (2, 10944009), (3, 7296006), (6, 3648003), (9, 2432002), (18, 1216001), (509, 43002), (1018, 21501), (1527, 14334), (2389, 9162), (3054, 7167), (4581, 4778)]