1221658921

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{1759}}^1\times {\mathrm{2111}}^1$

素因数の和:3924

約数の個数: 16

約数和(自身を含む): 1427374080

約数和(自身を除く): 205715159

約数列:

[1, 7, 47, 329, 1759, 2111, 12313, 14777, 82673, 99217, 578711, 694519, 3713249, 25992743, 174522703, 1221658921]

約数ペア:

[(1, 1221658921), (7, 174522703), (47, 25992743), (329, 3713249), (1759, 694519), (2111, 578711), (12313, 99217), (14777, 82673)]