2049705

素因数分解:

$3^5\times 5^1\times 7^1\times {\mathrm{241}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 4228224

約数和(自身を除く): 2178519

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 241, 243, 315, 405, 567, 723, 945, 1205, 1215, 1687, 1701, 2169, 2835, 3615, 5061, 6507, 8435, 8505, 10845, 15183, 19521, 25305, 32535, 45549, 58563, 75915, 97605, 136647, 227745, 292815, 409941, 683235, 2049705]

約数ペア:

[(1, 2049705), (3, 683235), (5, 409941), (7, 292815), (9, 227745), (15, 136647), (21, 97605), (27, 75915), (35, 58563), (45, 45549), (63, 32535), (81, 25305), (105, 19521), (135, 15183), (189, 10845), (241, 8505), (243, 8435), (315, 6507), (405, 5061), (567, 3615), (723, 2835), (945, 2169), (1205, 1701), (1215, 1687)]