16971201

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:323

約数の個数: 40

約数和(自身を含む): 27808704

約数和(自身を除く): 10837503

約数列:

[1, 3, 9, 13, 27, 39, 71, 81, 117, 213, 227, 351, 639, 681, 923, 1053, 1917, 2043, 2769, 2951, 5751, 6129, 8307, 8853, 16117, 18387, 24921, 26559, 48351, 74763, 79677, 145053, 209521, 239031, 435159, 628563, 1305477, 1885689, 5657067, 16971201]

約数ペア:

[(1, 16971201), (3, 5657067), (9, 1885689), (13, 1305477), (27, 628563), (39, 435159), (71, 239031), (81, 209521), (117, 145053), (213, 79677), (227, 74763), (351, 48351), (639, 26559), (681, 24921), (923, 18387), (1053, 16117), (1917, 8853), (2043, 8307), (2769, 6129), (2951, 5751)]