19948456

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{571}}^1$

素因数の和:985

約数の個数: 32

約数和(自身を含む): 40978080

約数和(自身を除く): 21029624

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 397, 571, 794, 1142, 1588, 2284, 3176, 4367, 4568, 6281, 8734, 12562, 17468, 25124, 34936, 50248, 226687, 453374, 906748, 1813496, 2493557, 4987114, 9974228, 19948456]

約数ペア:

[(1, 19948456), (2, 9974228), (4, 4987114), (8, 2493557), (11, 1813496), (22, 906748), (44, 453374), (88, 226687), (397, 50248), (571, 34936), (794, 25124), (1142, 17468), (1588, 12562), (2284, 8734), (3176, 6281), (4367, 4568)]