18854615

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{151}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 26199936

約数和(自身を除く): 7345321

約数列:

[1, 5, 13, 17, 65, 85, 113, 151, 221, 565, 755, 1105, 1469, 1921, 1963, 2567, 7345, 9605, 9815, 12835, 17063, 24973, 33371, 85315, 124865, 166855, 221819, 290071, 1109095, 1450355, 3770923, 18854615]

約数ペア:

[(1, 18854615), (5, 3770923), (13, 1450355), (17, 1109095), (65, 290071), (85, 221819), (113, 166855), (151, 124865), (221, 85315), (565, 33371), (755, 24973), (1105, 17063), (1469, 12835), (1921, 9815), (1963, 9605), (2567, 7345)]