21105627

素因数分解:

$3^1\times {\mathrm{103}}^1\times {\mathrm{167}}^1\times {\mathrm{409}}^1$

素因数の和:682

約数の個数: 16

約数和(自身を含む): 28654080

約数和(自身を除く): 7548453

約数列:

[1, 3, 103, 167, 309, 409, 501, 1227, 17201, 42127, 51603, 68303, 126381, 204909, 7035209, 21105627]

約数ペア:

[(1, 21105627), (3, 7035209), (103, 204909), (167, 126381), (309, 68303), (409, 51603), (501, 42127), (1227, 17201)]