20908892

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{4663}}^1$

素因数の和:4745

約数の個数: 24

約数和(自身を含む): 39177600

約数和(自身を除く): 18268708

約数列:

[1, 2, 4, 19, 38, 59, 76, 118, 236, 1121, 2242, 4484, 4663, 9326, 18652, 88597, 177194, 275117, 354388, 550234, 1100468, 5227223, 10454446, 20908892]

約数ペア:

[(1, 20908892), (2, 10454446), (4, 5227223), (19, 1100468), (38, 550234), (59, 354388), (76, 275117), (118, 177194), (236, 88597), (1121, 18652), (2242, 9326), (4484, 4663)]