19641232

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1061}}^1$

素因数の和:1171

約数の個数: 40

約数和(自身を含む): 41481720

約数和(自身を除く): 21840488

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 89, 104, 178, 208, 356, 712, 1061, 1157, 1424, 2122, 2314, 4244, 4628, 8488, 9256, 13793, 16976, 18512, 27586, 55172, 94429, 110344, 188858, 220688, 377716, 755432, 1227577, 1510864, 2455154, 4910308, 9820616, 19641232]

約数ペア:

[(1, 19641232), (2, 9820616), (4, 4910308), (8, 2455154), (13, 1510864), (16, 1227577), (26, 755432), (52, 377716), (89, 220688), (104, 188858), (178, 110344), (208, 94429), (356, 55172), (712, 27586), (1061, 18512), (1157, 16976), (1424, 13793), (2122, 9256), (2314, 8488), (4244, 4628)]