19839813

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1$

素因数の和:353

約数の個数: 32

約数和(自身を含む): 31358976

約数和(自身を除く): 11519163

約数列:

[1, 3, 7, 21, 43, 127, 129, 173, 301, 381, 519, 889, 903, 1211, 2667, 3633, 5461, 7439, 16383, 21971, 22317, 38227, 52073, 65913, 114681, 153797, 156219, 461391, 944753, 2834259, 6613271, 19839813]

約数ペア:

[(1, 19839813), (3, 6613271), (7, 2834259), (21, 944753), (43, 461391), (127, 156219), (129, 153797), (173, 114681), (301, 65913), (381, 52073), (519, 38227), (889, 22317), (903, 21971), (1211, 16383), (2667, 7439), (3633, 5461)]