21521068

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{881}}^1$

素因数の和:1113

約数の個数: 24

約数和(自身を含む): 39118464

約数和(自身を除く): 17597396

約数列:

[1, 2, 4, 31, 62, 124, 197, 394, 788, 881, 1762, 3524, 6107, 12214, 24428, 27311, 54622, 109244, 173557, 347114, 694228, 5380267, 10760534, 21521068]

約数ペア:

[(1, 21521068), (2, 10760534), (4, 5380267), (31, 694228), (62, 347114), (124, 173557), (197, 109244), (394, 54622), (788, 27311), (881, 24428), (1762, 12214), (3524, 6107)]