18991512

素因数分解:

$2^3\times 3^2\times {\mathrm{191}}^1\times {\mathrm{1381}}^1$

素因数の和:1584

約数の個数: 48

約数和(自身を含む): 51742080

約数和(自身を除く): 32750568

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 191, 382, 573, 764, 1146, 1381, 1528, 1719, 2292, 2762, 3438, 4143, 4584, 5524, 6876, 8286, 11048, 12429, 13752, 16572, 24858, 33144, 49716, 99432, 263771, 527542, 791313, 1055084, 1582626, 2110168, 2373939, 3165252, 4747878, 6330504, 9495756, 18991512]

約数ペア:

[(1, 18991512), (2, 9495756), (3, 6330504), (4, 4747878), (6, 3165252), (8, 2373939), (9, 2110168), (12, 1582626), (18, 1055084), (24, 791313), (36, 527542), (72, 263771), (191, 99432), (382, 49716), (573, 33144), (764, 24858), (1146, 16572), (1381, 13752), (1528, 12429), (1719, 11048), (2292, 8286), (2762, 6876), (3438, 5524), (4143, 4584)]