19911548

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{1559}}^1$

素因数の和:1697

約数の個数: 24

約数和(自身を含む): 36341760

約数和(自身を除く): 16430212

約数列:

[1, 2, 4, 31, 62, 103, 124, 206, 412, 1559, 3118, 3193, 6236, 6386, 12772, 48329, 96658, 160577, 193316, 321154, 642308, 4977887, 9955774, 19911548]

約数ペア:

[(1, 19911548), (2, 9955774), (4, 4977887), (31, 642308), (62, 321154), (103, 193316), (124, 160577), (206, 96658), (412, 48329), (1559, 12772), (3118, 6386), (3193, 6236)]