19996384

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{269}}^1$

素因数の和:403

約数の個数: 48

約数和(自身を含む): 41640480

約数和(自身を除く): 21644096

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 101, 184, 202, 269, 368, 404, 538, 736, 808, 1076, 1616, 2152, 2323, 3232, 4304, 4646, 6187, 8608, 9292, 12374, 18584, 24748, 27169, 37168, 49496, 54338, 74336, 98992, 108676, 197984, 217352, 434704, 624887, 869408, 1249774, 2499548, 4999096, 9998192, 19996384]

約数ペア:

[(1, 19996384), (2, 9998192), (4, 4999096), (8, 2499548), (16, 1249774), (23, 869408), (32, 624887), (46, 434704), (92, 217352), (101, 197984), (184, 108676), (202, 98992), (269, 74336), (368, 54338), (404, 49496), (538, 37168), (736, 27169), (808, 24748), (1076, 18584), (1616, 12374), (2152, 9292), (2323, 8608), (3232, 6187), (4304, 4646)]