21967869

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1559}}^1$

素因数の和:1641

約数の個数: 32

約数和(自身を含む): 37140480

約数和(自身を除く): 15172611

約数列:

[1, 3, 7, 11, 21, 33, 61, 77, 183, 231, 427, 671, 1281, 1559, 2013, 4677, 4697, 10913, 14091, 17149, 32739, 51447, 95099, 120043, 285297, 360129, 665693, 1046089, 1997079, 3138267, 7322623, 21967869]

約数ペア:

[(1, 21967869), (3, 7322623), (7, 3138267), (11, 1997079), (21, 1046089), (33, 665693), (61, 360129), (77, 285297), (183, 120043), (231, 95099), (427, 51447), (671, 32739), (1281, 17149), (1559, 14091), (2013, 10913), (4677, 4697)]