19497819

素因数分解:

$3^1\times {\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{257}}^1$

素因数の和:312

約数の個数: 32

約数和(自身を含む): 30216960

約数和(自身を除く): 10719141

約数列:

[1, 3, 11, 19, 33, 57, 121, 209, 257, 363, 627, 771, 1331, 2299, 2827, 3993, 4883, 6897, 8481, 14649, 25289, 31097, 53713, 75867, 93291, 161139, 342067, 590843, 1026201, 1772529, 6499273, 19497819]

約数ペア:

[(1, 19497819), (3, 6499273), (11, 1772529), (19, 1026201), (33, 590843), (57, 342067), (121, 161139), (209, 93291), (257, 75867), (363, 53713), (627, 31097), (771, 25289), (1331, 14649), (2299, 8481), (2827, 6897), (3993, 4883)]