21224049

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{661}}^1$

素因数の和:821

約数の個数: 32

約数和(自身を含む): 35589120

約数和(自身を除く): 14365071

約数列:

[1, 3, 7, 11, 21, 33, 77, 139, 231, 417, 661, 973, 1529, 1983, 2919, 4587, 4627, 7271, 10703, 13881, 21813, 32109, 50897, 91879, 152691, 275637, 643153, 1010669, 1929459, 3032007, 7074683, 21224049]

約数ペア:

[(1, 21224049), (3, 7074683), (7, 3032007), (11, 1929459), (21, 1010669), (33, 643153), (77, 275637), (139, 152691), (231, 91879), (417, 50897), (661, 32109), (973, 21813), (1529, 13881), (1983, 10703), (2919, 7271), (4587, 4627)]