19198221

素因数分解:

$3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{6673}}^1$

素因数の和:6820

約数の個数: 16

約数和(自身を含む): 29472384

約数和(自身を除く): 10274163

約数列:

[1, 3, 7, 21, 137, 411, 959, 2877, 6673, 20019, 46711, 140133, 914201, 2742603, 6399407, 19198221]

約数ペア:

[(1, 19198221), (3, 6399407), (7, 2742603), (21, 914201), (137, 140133), (411, 46711), (959, 20019), (2877, 6673)]