2189565

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{331}}^1$

素因数の和:359

約数の個数: 48

約数和(自身を含む): 4541760

約数和(自身を除く): 2352195

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 105, 135, 147, 189, 245, 315, 331, 441, 735, 945, 993, 1323, 1655, 2205, 2317, 2979, 4965, 6615, 6951, 8937, 11585, 14895, 16219, 20853, 34755, 44685, 48657, 62559, 81095, 104265, 145971, 243285, 312795, 437913, 729855, 2189565]

約数ペア:

[(1, 2189565), (3, 729855), (5, 437913), (7, 312795), (9, 243285), (15, 145971), (21, 104265), (27, 81095), (35, 62559), (45, 48657), (49, 44685), (63, 34755), (105, 20853), (135, 16219), (147, 14895), (189, 11585), (245, 8937), (315, 6951), (331, 6615), (441, 4965), (735, 2979), (945, 2317), (993, 2205), (1323, 1655)]