19874576

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1019}}^1$

素因数の和:1103

約数の個数: 40

約数和(自身を含む): 40979520

約数和(自身を除く): 21104944

約数列:

[1, 2, 4, 8, 16, 23, 46, 53, 92, 106, 184, 212, 368, 424, 848, 1019, 1219, 2038, 2438, 4076, 4876, 8152, 9752, 16304, 19504, 23437, 46874, 54007, 93748, 108014, 187496, 216028, 374992, 432056, 864112, 1242161, 2484322, 4968644, 9937288, 19874576]

約数ペア:

[(1, 19874576), (2, 9937288), (4, 4968644), (8, 2484322), (16, 1242161), (23, 864112), (46, 432056), (53, 374992), (92, 216028), (106, 187496), (184, 108014), (212, 93748), (368, 54007), (424, 46874), (848, 23437), (1019, 19504), (1219, 16304), (2038, 9752), (2438, 8152), (4076, 4876)]