19604221

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{1021}}^1$

素因数の和:1252

約数の個数: 16

約数和(自身を含む): 24266368

約数和(自身を除く): 4662147

約数列:

[1, 7, 13, 91, 211, 1021, 1477, 2743, 7147, 13273, 19201, 92911, 215431, 1508017, 2800603, 19604221]

約数ペア:

[(1, 19604221), (7, 2800603), (13, 1508017), (91, 215431), (211, 92911), (1021, 19201), (1477, 13273), (2743, 7147)]