2155615

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{509}}^1$

素因数の和:543

約数の個数: 24

約数和(自身を含む): 3255840

約数和(自身を除く): 1100225

約数列:

[1, 5, 7, 11, 35, 55, 77, 121, 385, 509, 605, 847, 2545, 3563, 4235, 5599, 17815, 27995, 39193, 61589, 195965, 307945, 431123, 2155615]

約数ペア:

[(1, 2155615), (5, 431123), (7, 307945), (11, 195965), (35, 61589), (55, 39193), (77, 27995), (121, 17815), (385, 5599), (509, 4235), (605, 3563), (847, 2545)]