18987216

素因数分解:

$2^4\times 3^1\times {\mathrm{37}}^1\times {\mathrm{10691}}^1$

素因数の和:10739

約数の個数: 40

約数和(自身を含む): 50380704

約数和(自身を除く): 31393488

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 37, 48, 74, 111, 148, 222, 296, 444, 592, 888, 1776, 10691, 21382, 32073, 42764, 64146, 85528, 128292, 171056, 256584, 395567, 513168, 791134, 1186701, 1582268, 2373402, 3164536, 4746804, 6329072, 9493608, 18987216]

約数ペア:

[(1, 18987216), (2, 9493608), (3, 6329072), (4, 4746804), (6, 3164536), (8, 2373402), (12, 1582268), (16, 1186701), (24, 791134), (37, 513168), (48, 395567), (74, 256584), (111, 171056), (148, 128292), (222, 85528), (296, 64146), (444, 42764), (592, 32073), (888, 21382), (1776, 10691)]