19810784

素因数分解:

$2^5\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1499}}^1$

素因数の和:1575

約数の個数: 48

約数和(自身を含む): 45360000

約数和(自身を除く): 25549216

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 59, 112, 118, 224, 236, 413, 472, 826, 944, 1499, 1652, 1888, 2998, 3304, 5996, 6608, 10493, 11992, 13216, 20986, 23984, 41972, 47968, 83944, 88441, 167888, 176882, 335776, 353764, 619087, 707528, 1238174, 1415056, 2476348, 2830112, 4952696, 9905392, 19810784]

約数ペア:

[(1, 19810784), (2, 9905392), (4, 4952696), (7, 2830112), (8, 2476348), (14, 1415056), (16, 1238174), (28, 707528), (32, 619087), (56, 353764), (59, 335776), (112, 176882), (118, 167888), (224, 88441), (236, 83944), (413, 47968), (472, 41972), (826, 23984), (944, 20986), (1499, 13216), (1652, 11992), (1888, 10493), (2998, 6608), (3304, 5996)]