19153988

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{12907}}^1$

素因数の和:12971

約数の個数: 24

約数和(自身を含む): 39033792

約数和(自身を除く): 19879804

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 371, 742, 1484, 12907, 25814, 51628, 90349, 180698, 361396, 684071, 1368142, 2736284, 4788497, 9576994, 19153988]

約数ペア:

[(1, 19153988), (2, 9576994), (4, 4788497), (7, 2736284), (14, 1368142), (28, 684071), (53, 361396), (106, 180698), (212, 90349), (371, 51628), (742, 25814), (1484, 12907)]