19513893

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{48907}}^1$

素因数の和:48936

約数の個数: 16

約数和(自身を含む): 31301120

約数和(自身を除く): 11787227

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 48907, 146721, 342349, 929233, 1027047, 2787699, 6504631, 19513893]

約数ペア:

[(1, 19513893), (3, 6504631), (7, 2787699), (19, 1027047), (21, 929233), (57, 342349), (133, 146721), (399, 48907)]