21321867

素因数分解:

$3^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{6229}}^1$

素因数の和:6402

約数の個数: 16

約数和(自身を含む): 32695040

約数和(自身を除く): 11373173

約数列:

[1, 3, 7, 21, 163, 489, 1141, 3423, 6229, 18687, 43603, 130809, 1015327, 3045981, 7107289, 21321867]

約数ペア:

[(1, 21321867), (3, 7107289), (7, 3045981), (21, 1015327), (163, 130809), (489, 43603), (1141, 18687), (3423, 6229)]