19105801

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:241

約数の個数: 32

約数和(自身を含む): 24208128

約数和(自身を除く): 5102327

約数列:

[1, 11, 13, 23, 37, 143, 157, 253, 299, 407, 481, 851, 1727, 2041, 3289, 3611, 5291, 5809, 9361, 11063, 22451, 39721, 46943, 63899, 75517, 121693, 133607, 516373, 830687, 1469677, 1736891, 19105801]

約数ペア:

[(1, 19105801), (11, 1736891), (13, 1469677), (23, 830687), (37, 516373), (143, 133607), (157, 121693), (253, 75517), (299, 63899), (407, 46943), (481, 39721), (851, 22451), (1727, 11063), (2041, 9361), (3289, 5809), (3611, 5291)]