18901568

素因数分解:

$2^6\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1361}}^1$

素因数の和:1411

約数の個数: 56

約数和(自身を含む): 44281344

約数和(自身を除く): 25379776

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 217, 224, 248, 434, 448, 496, 868, 992, 1361, 1736, 1984, 2722, 3472, 5444, 6944, 9527, 10888, 13888, 19054, 21776, 38108, 42191, 43552, 76216, 84382, 87104, 152432, 168764, 295337, 304864, 337528, 590674, 609728, 675056, 1181348, 1350112, 2362696, 2700224, 4725392, 9450784, 18901568]

約数ペア:

[(1, 18901568), (2, 9450784), (4, 4725392), (7, 2700224), (8, 2362696), (14, 1350112), (16, 1181348), (28, 675056), (31, 609728), (32, 590674), (56, 337528), (62, 304864), (64, 295337), (112, 168764), (124, 152432), (217, 87104), (224, 84382), (248, 76216), (434, 43552), (448, 42191), (496, 38108), (868, 21776), (992, 19054), (1361, 13888), (1736, 10888), (1984, 9527), (2722, 6944), (3472, 5444)]