21797997

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1279}}^1$

素因数の和:1337

約数の個数: 32

約数和(自身を含む): 34406400

約数和(自身を除く): 12608403

約数列:

[1, 3, 13, 19, 23, 39, 57, 69, 247, 299, 437, 741, 897, 1279, 1311, 3837, 5681, 16627, 17043, 24301, 29417, 49881, 72903, 88251, 315913, 382421, 558923, 947739, 1147263, 1676769, 7265999, 21797997]

約数ペア:

[(1, 21797997), (3, 7265999), (13, 1676769), (19, 1147263), (23, 947739), (39, 558923), (57, 382421), (69, 315913), (247, 88251), (299, 72903), (437, 49881), (741, 29417), (897, 24301), (1279, 17043), (1311, 16627), (3837, 5681)]