21482391

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{563}}^1$

素因数の和:675

約数の個数: 32

約数和(自身を含む): 34652160

約数和(自身を除く): 13169769

約数列:

[1, 3, 7, 21, 23, 69, 79, 161, 237, 483, 553, 563, 1659, 1689, 1817, 3941, 5451, 11823, 12719, 12949, 38157, 38847, 44477, 90643, 133431, 271929, 311339, 934017, 1022971, 3068913, 7160797, 21482391]

約数ペア:

[(1, 21482391), (3, 7160797), (7, 3068913), (21, 1022971), (23, 934017), (69, 311339), (79, 271929), (161, 133431), (237, 90643), (483, 44477), (553, 38847), (563, 38157), (1659, 12949), (1689, 12719), (1817, 11823), (3941, 5451)]