19749496

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3583}}^1$

素因数の和:3655

約数の個数: 32

約数和(自身を含む): 40642560

約数和(自身を除く): 20893064

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 212, 424, 689, 1378, 2756, 3583, 5512, 7166, 14332, 28664, 46579, 93158, 186316, 189899, 372632, 379798, 759596, 1519192, 2468687, 4937374, 9874748, 19749496]

約数ペア:

[(1, 19749496), (2, 9874748), (4, 4937374), (8, 2468687), (13, 1519192), (26, 759596), (52, 379798), (53, 372632), (104, 189899), (106, 186316), (212, 93158), (424, 46579), (689, 28664), (1378, 14332), (2756, 7166), (3583, 5512)]