28404784

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{26497}}^1$

素因数の和:26572

約数の個数: 20

約数和(自身を含む): 55857784

約数和(自身を除く): 27453000

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 26497, 52994, 105988, 211976, 423952, 1775299, 3550598, 7101196, 14202392, 28404784]

約数ペア:

[(1, 28404784), (2, 14202392), (4, 7101196), (8, 3550598), (16, 1775299), (67, 423952), (134, 211976), (268, 105988), (536, 52994), (1072, 26497)]