18001305

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{443}}^1$

素因数の和:507

約数の個数: 64

約数和(自身を含む): 37509120

約数和(自身を除く): 19507815

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 43, 45, 63, 105, 129, 135, 189, 215, 301, 315, 387, 443, 645, 903, 945, 1161, 1329, 1505, 1935, 2215, 2709, 3101, 3987, 4515, 5805, 6645, 8127, 9303, 11961, 13545, 15505, 19049, 19935, 27909, 40635, 46515, 57147, 59805, 83727, 95245, 133343, 139545, 171441, 285735, 400029, 418635, 514323, 666715, 857205, 1200087, 2000145, 2571615, 3600261, 6000435, 18001305]

約数ペア:

[(1, 18001305), (3, 6000435), (5, 3600261), (7, 2571615), (9, 2000145), (15, 1200087), (21, 857205), (27, 666715), (35, 514323), (43, 418635), (45, 400029), (63, 285735), (105, 171441), (129, 139545), (135, 133343), (189, 95245), (215, 83727), (301, 59805), (315, 57147), (387, 46515), (443, 40635), (645, 27909), (903, 19935), (945, 19049), (1161, 15505), (1329, 13545), (1505, 11961), (1935, 9303), (2215, 8127), (2709, 6645), (3101, 5805), (3987, 4515)]