19899544

素因数分解:

$2^3\times 7^1\times {\mathrm{269}}^1\times {\mathrm{1321}}^1$

素因数の和:1603

約数の個数: 32

約数和(自身を含む): 42832800

約数和(自身を除く): 22933256

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 269, 538, 1076, 1321, 1883, 2152, 2642, 3766, 5284, 7532, 9247, 10568, 15064, 18494, 36988, 73976, 355349, 710698, 1421396, 2487443, 2842792, 4974886, 9949772, 19899544]

約数ペア:

[(1, 19899544), (2, 9949772), (4, 4974886), (7, 2842792), (8, 2487443), (14, 1421396), (28, 710698), (56, 355349), (269, 73976), (538, 36988), (1076, 18494), (1321, 15064), (1883, 10568), (2152, 9247), (2642, 7532), (3766, 5284)]