20898344

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{769}}^1$

素因数の和:897

約数の個数: 32

約数和(自身を含む): 40656000

約数和(自身を除く): 19757656

約数列:

[1, 2, 4, 8, 43, 79, 86, 158, 172, 316, 344, 632, 769, 1538, 3076, 3397, 6152, 6794, 13588, 27176, 33067, 60751, 66134, 121502, 132268, 243004, 264536, 486008, 2612293, 5224586, 10449172, 20898344]

約数ペア:

[(1, 20898344), (2, 10449172), (4, 5224586), (8, 2612293), (43, 486008), (79, 264536), (86, 243004), (158, 132268), (172, 121502), (316, 66134), (344, 60751), (632, 33067), (769, 27176), (1538, 13588), (3076, 6794), (3397, 6152)]