18012645

素因数分解:

$3^3\times 5^1\times 7^3\times {\mathrm{389}}^1$

素因数の和:424

約数の個数: 64

約数和(自身を含む): 37440000

約数和(自身を除く): 19427355

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 105, 135, 147, 189, 245, 315, 343, 389, 441, 735, 945, 1029, 1167, 1323, 1715, 1945, 2205, 2723, 3087, 3501, 5145, 5835, 6615, 8169, 9261, 10503, 13615, 15435, 17505, 19061, 24507, 40845, 46305, 52515, 57183, 73521, 95305, 122535, 133427, 171549, 285915, 367605, 400281, 514647, 667135, 857745, 1200843, 2001405, 2573235, 3602529, 6004215, 18012645]

約数ペア:

[(1, 18012645), (3, 6004215), (5, 3602529), (7, 2573235), (9, 2001405), (15, 1200843), (21, 857745), (27, 667135), (35, 514647), (45, 400281), (49, 367605), (63, 285915), (105, 171549), (135, 133427), (147, 122535), (189, 95305), (245, 73521), (315, 57183), (343, 52515), (389, 46305), (441, 40845), (735, 24507), (945, 19061), (1029, 17505), (1167, 15435), (1323, 13615), (1715, 10503), (1945, 9261), (2205, 8169), (2723, 6615), (3087, 5835), (3501, 5145)]