18900896

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4441}}^1$

素因数の和:4477

約数の個数: 48

約数和(自身を含む): 44775360

約数和(自身を除く): 25874464

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, 4441, 8882, 17764, 31087, 35528, 62174, 71056, 84379, 124348, 142112, 168758, 248696, 337516, 497392, 590653, 675032, 994784, 1181306, 1350064, 2362612, 2700128, 4725224, 9450448, 18900896]

約数ペア:

[(1, 18900896), (2, 9450448), (4, 4725224), (7, 2700128), (8, 2362612), (14, 1350064), (16, 1181306), (19, 994784), (28, 675032), (32, 590653), (38, 497392), (56, 337516), (76, 248696), (112, 168758), (133, 142112), (152, 124348), (224, 84379), (266, 71056), (304, 62174), (532, 35528), (608, 31087), (1064, 17764), (2128, 8882), (4256, 4441)]