21935823

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4229}}^1$

素因数の和:4271

約数の個数: 32

約数和(自身を含む): 37900800

約数和(自身を除く): 15964977

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 4229, 5187, 12687, 29603, 54977, 80351, 88809, 164931, 241053, 384839, 562457, 1044563, 1154517, 1687371, 3133689, 7311941, 21935823]

約数ペア:

[(1, 21935823), (3, 7311941), (7, 3133689), (13, 1687371), (19, 1154517), (21, 1044563), (39, 562457), (57, 384839), (91, 241053), (133, 164931), (247, 88809), (273, 80351), (399, 54977), (741, 29603), (1729, 12687), (4229, 5187)]