18979268

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{8803}}^1$

素因数の和:8832

約数の個数: 36

約数和(自身を含む): 42153552

約数和(自身を除く): 23174284

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156, 8803, 17606, 35212, 61621, 96833, 123242, 193666, 246484, 387332, 431347, 677831, 862694, 1355662, 1725388, 2711324, 4744817, 9489634, 18979268]

約数ペア:

[(1, 18979268), (2, 9489634), (4, 4744817), (7, 2711324), (11, 1725388), (14, 1355662), (22, 862694), (28, 677831), (44, 431347), (49, 387332), (77, 246484), (98, 193666), (154, 123242), (196, 96833), (308, 61621), (539, 35212), (1078, 17606), (2156, 8803)]