19539764

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{1097}}^1$

素因数の和:1235

約数の個数: 24

約数和(自身を含む): 35263368

約数和(自身を除く): 15723604

約数列:

[1, 2, 4, 61, 73, 122, 146, 244, 292, 1097, 2194, 4388, 4453, 8906, 17812, 66917, 80081, 133834, 160162, 267668, 320324, 4884941, 9769882, 19539764]

約数ペア:

[(1, 19539764), (2, 9769882), (4, 4884941), (61, 320324), (73, 267668), (122, 160162), (146, 133834), (244, 80081), (292, 66917), (1097, 17812), (2194, 8906), (4388, 4453)]