19438892

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{40163}}^1$

素因数の和:40189

約数の個数: 18

約数和(自身を含む): 37392684

約数和(自身を除く): 17953792

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 40163, 80326, 160652, 441793, 883586, 1767172, 4859723, 9719446, 19438892]

約数ペア:

[(1, 19438892), (2, 9719446), (4, 4859723), (11, 1767172), (22, 883586), (44, 441793), (121, 160652), (242, 80326), (484, 40163)]