19399984

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{18097}}^1$

素因数の和:18172

約数の個数: 20

約数和(自身を含む): 38150584

約数和(自身を除く): 18750600

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 18097, 36194, 72388, 144776, 289552, 1212499, 2424998, 4849996, 9699992, 19399984]

約数ペア:

[(1, 19399984), (2, 9699992), (4, 4849996), (8, 2424998), (16, 1212499), (67, 289552), (134, 144776), (268, 72388), (536, 36194), (1072, 18097)]