18994365

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:243

約数の個数: 64

約数和(自身を含む): 37094400

約数和(自身を除く): 18100035

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 79, 117, 135, 137, 195, 237, 351, 395, 411, 585, 685, 711, 1027, 1185, 1233, 1755, 1781, 2055, 2133, 3081, 3555, 3699, 5135, 5343, 6165, 8905, 9243, 10665, 10823, 15405, 16029, 18495, 26715, 27729, 32469, 46215, 48087, 54115, 80145, 97407, 138645, 140699, 162345, 240435, 292221, 422097, 487035, 703495, 1266291, 1461105, 2110485, 3798873, 6331455, 18994365]

約数ペア:

[(1, 18994365), (3, 6331455), (5, 3798873), (9, 2110485), (13, 1461105), (15, 1266291), (27, 703495), (39, 487035), (45, 422097), (65, 292221), (79, 240435), (117, 162345), (135, 140699), (137, 138645), (195, 97407), (237, 80145), (351, 54115), (395, 48087), (411, 46215), (585, 32469), (685, 27729), (711, 26715), (1027, 18495), (1185, 16029), (1233, 15405), (1755, 10823), (1781, 10665), (2055, 9243), (2133, 8905), (3081, 6165), (3555, 5343), (3699, 5135)]