7178409

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1999}}^1$

素因数の和:2034

約数の個数: 32

約数和(自身を含む): 12800000

約数和(自身を除く): 5621591

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 171, 189, 399, 513, 1197, 1999, 3591, 5997, 13993, 17991, 37981, 41979, 53973, 113943, 125937, 265867, 341829, 377811, 797601, 1025487, 2392803, 7178409]

約数ペア:

[(1, 7178409), (3, 2392803), (7, 1025487), (9, 797601), (19, 377811), (21, 341829), (27, 265867), (57, 125937), (63, 113943), (133, 53973), (171, 41979), (189, 37981), (399, 17991), (513, 13993), (1197, 5997), (1999, 3591)]