21281750

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{12161}}^1$

素因数の和:12185

約数の個数: 32

約数和(自身を含む): 45534528

約数和(自身を除く): 24252778

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 125, 175, 250, 350, 875, 1750, 12161, 24322, 60805, 85127, 121610, 170254, 304025, 425635, 608050, 851270, 1520125, 2128175, 3040250, 4256350, 10640875, 21281750]

約数ペア:

[(1, 21281750), (2, 10640875), (5, 4256350), (7, 3040250), (10, 2128175), (14, 1520125), (25, 851270), (35, 608050), (50, 425635), (70, 304025), (125, 170254), (175, 121610), (250, 85127), (350, 60805), (875, 24322), (1750, 12161)]