21131215218

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{61787179}}^1$

素因数の和:61787206

約数の個数: 24

約数和(自身を含む): 48194000400

約数和(自身を除く): 27062785182

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342, 61787179, 123574358, 185361537, 370723074, 556084611, 1112169222, 1173956401, 2347912802, 3521869203, 7043738406, 10565607609, 21131215218]

約数ペア:

[(1, 21131215218), (2, 10565607609), (3, 7043738406), (6, 3521869203), (9, 2347912802), (18, 1173956401), (19, 1112169222), (38, 556084611), (57, 370723074), (114, 185361537), (171, 123574358), (342, 61787179)]