15721447521

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1\times {\mathrm{11027}}^1$

素因数の和:11445

約数の個数: 32

約数和(自身を含む): 22825313280

約数和(自身を除く): 7103865759

約数列:

[1, 3, 13, 39, 139, 263, 417, 789, 1807, 3419, 5421, 10257, 11027, 33081, 36557, 109671, 143351, 430053, 475241, 1425723, 1532753, 2900101, 4598259, 8700303, 19925789, 37701313, 59777367, 113103939, 403114039, 1209342117, 5240482507, 15721447521]

約数ペア:

[(1, 15721447521), (3, 5240482507), (13, 1209342117), (39, 403114039), (139, 113103939), (263, 59777367), (417, 37701313), (789, 19925789), (1807, 8700303), (3419, 4598259), (5421, 2900101), (10257, 1532753), (11027, 1425723), (33081, 475241), (36557, 430053), (109671, 143351)]