18943456

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4451}}^1$

素因数の和:4487

約数の個数: 48

約数和(自身を含む): 44876160

約数和(自身を除く): 25932704

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 76, 112, 133, 152, 224, 266, 304, 532, 608, 1064, 2128, 4256, 4451, 8902, 17804, 31157, 35608, 62314, 71216, 84569, 124628, 142432, 169138, 249256, 338276, 498512, 591983, 676552, 997024, 1183966, 1353104, 2367932, 2706208, 4735864, 9471728, 18943456]

約数ペア:

[(1, 18943456), (2, 9471728), (4, 4735864), (7, 2706208), (8, 2367932), (14, 1353104), (16, 1183966), (19, 997024), (28, 676552), (32, 591983), (38, 498512), (56, 338276), (76, 249256), (112, 169138), (133, 142432), (152, 124628), (224, 84569), (266, 71216), (304, 62314), (532, 35608), (608, 31157), (1064, 17804), (2128, 8902), (4256, 4451)]