20491728

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{22469}}^1$

素因数の和:22499

約数の個数: 40

約数和(自身を含む): 55725600

約数和(自身を除く): 35233872

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 76, 114, 152, 228, 304, 456, 912, 22469, 44938, 67407, 89876, 134814, 179752, 269628, 359504, 426911, 539256, 853822, 1078512, 1280733, 1707644, 2561466, 3415288, 5122932, 6830576, 10245864, 20491728]

約数ペア:

[(1, 20491728), (2, 10245864), (3, 6830576), (4, 5122932), (6, 3415288), (8, 2561466), (12, 1707644), (16, 1280733), (19, 1078512), (24, 853822), (38, 539256), (48, 426911), (57, 359504), (76, 269628), (114, 179752), (152, 134814), (228, 89876), (304, 67407), (456, 44938), (912, 22469)]