21836115

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{3301}}^1$

素因数の和:3329

約数の個数: 48

約数和(自身を含む): 45171360

約数和(自身を除く): 23335245

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 105, 135, 147, 189, 245, 315, 441, 735, 945, 1323, 2205, 3301, 6615, 9903, 16505, 23107, 29709, 49515, 69321, 89127, 115535, 148545, 161749, 207963, 346605, 445635, 485247, 623889, 808745, 1039815, 1455741, 2426235, 3119445, 4367223, 7278705, 21836115]

約数ペア:

[(1, 21836115), (3, 7278705), (5, 4367223), (7, 3119445), (9, 2426235), (15, 1455741), (21, 1039815), (27, 808745), (35, 623889), (45, 485247), (49, 445635), (63, 346605), (105, 207963), (135, 161749), (147, 148545), (189, 115535), (245, 89127), (315, 69321), (441, 49515), (735, 29709), (945, 23107), (1323, 16505), (2205, 9903), (3301, 6615)]