21496244

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{983}}^1$

素因数の和:1076

約数の個数: 48

約数和(自身を含む): 47609856

約数和(自身を除く): 26113612

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 71, 77, 142, 154, 284, 308, 497, 781, 983, 994, 1562, 1966, 1988, 3124, 3932, 5467, 6881, 10813, 10934, 13762, 21626, 21868, 27524, 43252, 69793, 75691, 139586, 151382, 279172, 302764, 488551, 767723, 977102, 1535446, 1954204, 3070892, 5374061, 10748122, 21496244]

約数ペア:

[(1, 21496244), (2, 10748122), (4, 5374061), (7, 3070892), (11, 1954204), (14, 1535446), (22, 977102), (28, 767723), (44, 488551), (71, 302764), (77, 279172), (142, 151382), (154, 139586), (284, 75691), (308, 69793), (497, 43252), (781, 27524), (983, 21868), (994, 21626), (1562, 13762), (1966, 10934), (1988, 10813), (3124, 6881), (3932, 5467)]