18993128

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2803}}^1$

素因数の和:2838

約数の個数: 48

約数和(自身を含む): 44751840

約数和(自身を除く): 25758712

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 121, 154, 242, 308, 484, 616, 847, 968, 1694, 2803, 3388, 5606, 6776, 11212, 19621, 22424, 30833, 39242, 61666, 78484, 123332, 156968, 215831, 246664, 339163, 431662, 678326, 863324, 1356652, 1726648, 2374141, 2713304, 4748282, 9496564, 18993128]

約数ペア:

[(1, 18993128), (2, 9496564), (4, 4748282), (7, 2713304), (8, 2374141), (11, 1726648), (14, 1356652), (22, 863324), (28, 678326), (44, 431662), (56, 339163), (77, 246664), (88, 215831), (121, 156968), (154, 123332), (242, 78484), (308, 61666), (484, 39242), (616, 30833), (847, 22424), (968, 19621), (1694, 11212), (2803, 6776), (3388, 5606)]