20172243

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3889}}^1$

素因数の和:3931

約数の個数: 32

約数和(自身を含む): 34854400

約数和(自身を除く): 14682157

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 3889, 5187, 11667, 27223, 50557, 73891, 81669, 151671, 221673, 353899, 517237, 960583, 1061697, 1551711, 2881749, 6724081, 20172243]

約数ペア:

[(1, 20172243), (3, 6724081), (7, 2881749), (13, 1551711), (19, 1061697), (21, 960583), (39, 517237), (57, 353899), (91, 221673), (133, 151671), (247, 81669), (273, 73891), (399, 50557), (741, 27223), (1729, 11667), (3889, 5187)]