19489976

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{221477}}^1$

素因数の和:221494

約数の個数: 16

約数和(自身を含む): 39866040

約数和(自身を除く): 20376064

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 221477, 442954, 885908, 1771816, 2436247, 4872494, 9744988, 19489976]

約数ペア:

[(1, 19489976), (2, 9744988), (4, 4872494), (8, 2436247), (11, 1771816), (22, 885908), (44, 442954), (88, 221477)]