21528816

素因数分解:

$2^4\times 3^1\times {\mathrm{389}}^1\times {\mathrm{1153}}^1$

素因数の和:1553

約数の個数: 40

約数和(自身を含む): 55807440

約数和(自身を除く): 34278624

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 389, 778, 1153, 1167, 1556, 2306, 2334, 3112, 3459, 4612, 4668, 6224, 6918, 9224, 9336, 13836, 18448, 18672, 27672, 55344, 448517, 897034, 1345551, 1794068, 2691102, 3588136, 5382204, 7176272, 10764408, 21528816]

約数ペア:

[(1, 21528816), (2, 10764408), (3, 7176272), (4, 5382204), (6, 3588136), (8, 2691102), (12, 1794068), (16, 1345551), (24, 897034), (48, 448517), (389, 55344), (778, 27672), (1153, 18672), (1167, 18448), (1556, 13836), (2306, 9336), (2334, 9224), (3112, 6918), (3459, 6224), (4612, 4668)]