64820217

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{280607}}^1$

素因数の和:280628

約数の個数: 16

約数和(自身を含む): 107753472

約数和(自身を除く): 42933255

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 280607, 841821, 1964249, 3086677, 5892747, 9260031, 21606739, 64820217]

約数ペア:

[(1, 64820217), (3, 21606739), (7, 9260031), (11, 5892747), (21, 3086677), (33, 1964249), (77, 841821), (231, 280607)]