21038535

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:246

約数の個数: 80

約数和(自身を含む): 44396352

約数和(自身を除く): 23357817

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 41, 45, 63, 81, 105, 123, 135, 181, 189, 205, 287, 315, 369, 405, 543, 567, 615, 861, 905, 945, 1107, 1267, 1435, 1629, 1845, 2583, 2715, 2835, 3321, 3801, 4305, 4887, 5535, 6335, 7421, 7749, 8145, 11403, 12915, 14661, 16605, 19005, 22263, 23247, 24435, 34209, 37105, 38745, 51947, 57015, 66789, 73305, 102627, 111315, 116235, 155841, 171045, 200367, 259735, 333945, 467523, 513135, 601101, 779205, 1001835, 1402569, 2337615, 3005505, 4207707, 7012845, 21038535]

約数ペア:

[(1, 21038535), (3, 7012845), (5, 4207707), (7, 3005505), (9, 2337615), (15, 1402569), (21, 1001835), (27, 779205), (35, 601101), (41, 513135), (45, 467523), (63, 333945), (81, 259735), (105, 200367), (123, 171045), (135, 155841), (181, 116235), (189, 111315), (205, 102627), (287, 73305), (315, 66789), (369, 57015), (405, 51947), (543, 38745), (567, 37105), (615, 34209), (861, 24435), (905, 23247), (945, 22263), (1107, 19005), (1267, 16605), (1435, 14661), (1629, 12915), (1845, 11403), (2583, 8145), (2715, 7749), (2835, 7421), (3321, 6335), (3801, 5535), (4305, 4887)]