398758521

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{1999}}^1$

素因数の和:2098

約数の個数: 48

約数和(自身を含む): 656640000

約数和(自身を除く): 257881479

約数列:

[1, 3, 7, 21, 23, 49, 59, 69, 147, 161, 177, 413, 483, 1127, 1239, 1357, 1999, 2891, 3381, 4071, 5997, 8673, 9499, 13993, 28497, 41979, 45977, 66493, 97951, 117941, 137931, 199479, 293853, 321839, 353823, 825587, 965517, 2252873, 2476761, 2712643, 5779109, 6758619, 8137929, 17337327, 18988501, 56965503, 132919507, 398758521]

約数ペア:

[(1, 398758521), (3, 132919507), (7, 56965503), (21, 18988501), (23, 17337327), (49, 8137929), (59, 6758619), (69, 5779109), (147, 2712643), (161, 2476761), (177, 2252873), (413, 965517), (483, 825587), (1127, 353823), (1239, 321839), (1357, 293853), (1999, 199479), (2891, 137931), (3381, 117941), (4071, 97951), (5997, 66493), (8673, 45977), (9499, 41979), (13993, 28497)]