21019677

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{6217}}^1$

素因数の和:6257

約数の個数: 24

約数和(自身を含む): 34024896

約数和(自身を除く): 13005219

約数列:

[1, 3, 7, 21, 23, 49, 69, 147, 161, 483, 1127, 3381, 6217, 18651, 43519, 130557, 142991, 304633, 428973, 913899, 1000937, 3002811, 7006559, 21019677]

約数ペア:

[(1, 21019677), (3, 7006559), (7, 3002811), (21, 1000937), (23, 913899), (49, 428973), (69, 304633), (147, 142991), (161, 130557), (483, 43519), (1127, 18651), (3381, 6217)]