18704777

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{113}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 24820992

約数和(自身を除く): 6116215

約数列:

[1, 7, 13, 17, 91, 107, 113, 119, 221, 749, 791, 1391, 1469, 1547, 1819, 1921, 9737, 10283, 12091, 12733, 13447, 23647, 24973, 84637, 157183, 165529, 174811, 205547, 1100281, 1438829, 2672111, 18704777]

約数ペア:

[(1, 18704777), (7, 2672111), (13, 1438829), (17, 1100281), (91, 205547), (107, 174811), (113, 165529), (119, 157183), (221, 84637), (749, 24973), (791, 23647), (1391, 13447), (1469, 12733), (1547, 12091), (1819, 10283), (1921, 9737)]