20779815

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2711}}^1$

素因数の和:2799

約数の個数: 32

約数和(自身を含む): 38532096

約数和(自身を除く): 17752281

約数列:

[1, 3, 5, 7, 15, 21, 35, 73, 105, 219, 365, 511, 1095, 1533, 2555, 2711, 7665, 8133, 13555, 18977, 40665, 56931, 94885, 197903, 284655, 593709, 989515, 1385321, 2968545, 4155963, 6926605, 20779815]

約数ペア:

[(1, 20779815), (3, 6926605), (5, 4155963), (7, 2968545), (15, 1385321), (21, 989515), (35, 593709), (73, 284655), (105, 197903), (219, 94885), (365, 56931), (511, 40665), (1095, 18977), (1533, 13555), (2555, 8133), (2711, 7665)]