18519564

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{220471}}^1$

素因数の和:220485

約数の個数: 24

約数和(自身を含む): 49385728

約数和(自身を除く): 30866164

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 220471, 440942, 661413, 881884, 1322826, 1543297, 2645652, 3086594, 4629891, 6173188, 9259782, 18519564]

約数ペア:

[(1, 18519564), (2, 9259782), (3, 6173188), (4, 4629891), (6, 3086594), (7, 2645652), (12, 1543297), (14, 1322826), (21, 881884), (28, 661413), (42, 440942), (84, 220471)]