18917864

素因数分解:

$2^3\times 7^1\times {\mathrm{359}}^1\times {\mathrm{941}}^1$

素因数の和:1313

約数の個数: 32

約数和(自身を含む): 40694400

約数和(自身を除く): 21776536

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 359, 718, 941, 1436, 1882, 2513, 2872, 3764, 5026, 6587, 7528, 10052, 13174, 20104, 26348, 52696, 337819, 675638, 1351276, 2364733, 2702552, 4729466, 9458932, 18917864]

約数ペア:

[(1, 18917864), (2, 9458932), (4, 4729466), (7, 2702552), (8, 2364733), (14, 1351276), (28, 675638), (56, 337819), (359, 52696), (718, 26348), (941, 20104), (1436, 13174), (1882, 10052), (2513, 7528), (2872, 6587), (3764, 5026)]