21228077

素因数分解:

${\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1$

素因数の和:404

約数の個数: 16

約数和(自身を含む): 23506560

約数和(自身を除く): 2278483

約数列:

[1, 13, 71, 109, 211, 923, 1417, 2743, 7739, 14981, 22999, 100607, 194753, 298987, 1632929, 21228077]

約数ペア:

[(1, 21228077), (13, 1632929), (71, 298987), (109, 194753), (211, 100607), (923, 22999), (1417, 14981), (2743, 7739)]