19927257

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{49943}}^1$

素因数の和:49972

約数の個数: 16

約数和(自身を含む): 31964160

約数和(自身を除く): 12036903

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 49943, 149829, 349601, 948917, 1048803, 2846751, 6642419, 19927257]

約数ペア:

[(1, 19927257), (3, 6642419), (7, 2846751), (19, 1048803), (21, 948917), (57, 349601), (133, 149829), (399, 49943)]