20558836

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{1723}}^1$

素因数の和:1903

約数の個数: 24

約数和(自身を含む): 38134880

約数和(自身を除く): 17576044

約数列:

[1, 2, 4, 19, 38, 76, 157, 314, 628, 1723, 2983, 3446, 5966, 6892, 11932, 32737, 65474, 130948, 270511, 541022, 1082044, 5139709, 10279418, 20558836]

約数ペア:

[(1, 20558836), (2, 10279418), (4, 5139709), (19, 1082044), (38, 541022), (76, 270511), (157, 130948), (314, 65474), (628, 32737), (1723, 11932), (2983, 6892), (3446, 5966)]