21431493

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{271}}^1$

素因数の和:410

約数の個数: 32

約数和(自身を含む): 33292800

約数和(自身を除く): 11861307

約数列:

[1, 3, 9, 27, 29, 87, 101, 261, 271, 303, 783, 813, 909, 2439, 2727, 2929, 7317, 7859, 8787, 23577, 26361, 27371, 70731, 79083, 82113, 212193, 246339, 739017, 793759, 2381277, 7143831, 21431493]

約数ペア:

[(1, 21431493), (3, 7143831), (9, 2381277), (27, 793759), (29, 739017), (87, 246339), (101, 212193), (261, 82113), (271, 79083), (303, 70731), (783, 27371), (813, 26361), (909, 23577), (2439, 8787), (2727, 7859), (2929, 7317)]